Describing habitat and finding colour rings of Black-tailed Godwits (Limosa limosa) in the Casamance, Senegal, from 27 August – 6 September 2018

Expedition report, University of Groningen & Global Flyway Network, The Netherlands

September 2018

Jos Hooijmeijer, Ruth Howison, Idrissa Ndiaye & Theunis Piersma

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Introduction The Black-tailed Godwit (Limosa limosa; BTG) is a meadow bird (Verstrael 1987; Thijse 1904). The current Dutch population is estimated at fewer than 40.000 breeding pairs (Kentie et al. 2016) and represents an important part of the total continental BTG population Limosa limosa limosa. However, the number of breeding pairs have declined rapidly over the last decades, as compared to the 120.000 pairs in the 1960s (Mulder 1972). This is mainly caused by a change in agricultural land use. Intensification and rationalisation have led to degradation of the breeding habitat, resulting in low reproduction. The population in the Netherlands cannot produce enough chicks for a stable population. (Vickery et al. 2001; Newton 2004; Tscharnke et al. 2005; Teunissen & Soldaat 2006; Roodbergen et al. 2012). After the breeding season godwits migrate to southern Europe (Spain and Portugal) and West-Africa where they stay for wintering (Márquez-Ferrando et al. 2009; Hooijmeijer et al. 2013).

Demographic research Southwest Friesland To measure the changes in population numbers and the causes, in 2004 the University of Groningen started a long-term research in the south-western part of Friesland, The Netherlands. In 2007 the research area has expanded up to 8400 hectares and since 2012 it increased again with another 1600 hectares (Groen et al. 2012). A colour-marked population of godwits was set up to make them individually recognizable. The knowledge that has been collected with this research has been implemented by policy makers and nature conservation organisations.

Migration and wintering sites Black-tailed Godwit In 1983-1984 the wintering sites of godwits were explored for the first time. At that moment most godwits were wintering in rice areas along the West-African coast in Senegal, Gambia, Guinea-Bissau and further. Big numbers of godwits also occurred in the inner Niger delta in Mali (Altenburg & van der Kamp 1985), but they probably belonged to the eastern European population. Recently, the wintering behaviour has partly changed with an increasing number of godwits deciding to winter in southern Spain at National Park Doñana. In the 1980s during the first counts, only 4% of the NW- European population used this area as a wintering site but recent estimations suggest a big change with up to 23% of the population wintering in Spain. The most important reason for this is probably the creation of new artificial fishponds and rice fields. It is remarkable that this increase is not driven by climatic changes in the Sahel zone of West-Africa (Márquez-Ferrando et al. 2013). For godwits, staying Iberia can be advantageous because they can skip a 3000 kilometre (v.v.) travel over the Sahara, a potentially dangerous migration route and save their fat stores for the next breeding season.

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Figure 1. Two migration routes of satellite tagged birds in 2009. The left map shows the route of an Iberian wintering bird. On the right an African wintering bird. Iberian wintering birds save a 6000 km flight and don’t need to cross the Sahara twice (Hooijmeijer et al., 2013)..

Conservation The change in wintering grounds is remarkable and an important reason why we want to do (demographic) research in West-Africa. We know now that juveniles are more likely to make these kind of shifts than adults (Verhoeven et al., 2017), but not how they develop their individual migration strategy and perhaps thereby change the migration pattern of the species. These changes can also have consequences for the survival rate of both adults and juveniles. Moreover, they can lead to differences in reproductive success, for example due to differences in body condition upon arrival on the breeding grounds. Both are demographic parameters that can rapidly influence population dynamics. A better understanding of these processes is therefore also important from a conservation point of view; the Black-tailed Godwit qualifies since 2006 as “Near Threatened” on the IUCN Red List.

Until now, West-Africa is the only area along the migratory flyway from where we don’t receive many observations of colour-marked individuals. Only small numbers of colour-ringed birds have been reported, mainly by birdwatchers and, recently, by local scientists. Unfortunately the numbers of sightings are too small to make demographic comparisons between wintering sites.

Expeditions West-Africa and Iberia In November 2014 the University of Groningen, in cooperation with Global Flyway Network and financially supported by Birdlife Netherlands, embarked upon their first expedition to the wintering grounds in West-Africa and since then we visited the area 2-3 times per year. We aim to set up a demographic research project in this area in close cooperation with local scientists, volunteers and conservation organisations. The most important goal of the first missions was to get a good overview of the wintering grounds, resighting conditions, local facilities and knowledge and to make a start with setting up a dataset of individually recognizable godwits that winter in West-Africa. Secondly we made a pilot study of habitat choice and prey choice. At this moment comparable research is done in NP Doñana (Spain), Extremadura (Spain) and the Tejo/Sado estuaries near Lisbon (Portugal). The last two are used as stop-over sites in February. Therefore it is mandatory to continue our

3 research at all these locations to find links between wintering sites, stop-over sites and breeding sites. Research questions we want to get into in the future with our work in West-Africa, Spain, Portugal and the Netherlands are:  What is the overall difference in adult mortality between birds wintering in West-Africa and Iberia? And where along the flyway do these differences occur?  Can birds change their wintering strategy during their life? And is this age-dependent?  Does reproductive success determine where birds winter?  Has the wintering strategy consequences for their migration and breeding phenology? And are there consequences for their reproductive success?

Habitat study Anthropogenic alteration of natural wetlands is having a major impact worldwide with consequences (both negative and positive) for migratory species such as continental black-tailed godwits. The majority of continental black-tailed godwits breed in grassland meadows situated in north-west and Eastern Europe (March – July) after which they migrate southwards for the non-breeding period (mid July – February), finding forage resources within wetlands and agricultural rice fields. On their migratory route black-tailed godwits pass through France and either stage or spend the non- breeding period in southern Spain and Portugal. Many will make the Saharan crossing to overwintering sites in West Africa, namely; the Senegal Delta and coastal region of Senegal, The Gambia, Guinea-Bissau, Guinea, Sierra Leone and central Mali.

Concentrating our efforts in Senegal, we used remote sensing products (Modis EVI 16 day time series) and 3.5 years of good quality locations of black-tailed godwits (equipped with PTT satellite tags) to generate a spatially and temporally explicit habitat prediction model using MaxEnt modelling. We found that during the non-breeding period black-tailed godwits show a preference for stable habitats within a relatively low productivity range (EVI value 0.1-0.2), which are associated with open wetlands, low vegetation cover and shallow surface water. However, remote sensing data is difficult to interpret without accurate ground-truthing information. Additionally, godwits spend much of their time foraging either on the mudflats of saline mangrove wetlands or in wet rice fields, however little is known of the nature of the prey items at different times of the year. In this study we aimed to conduct a survey categorizing and describing habitats, measuring environmental variables such as water salinity and soil penetration pressure, feeding efficiency of the godwits and carefully searching the substrate to establish the identity of godwit prey items.

Between 27 August and 6 September 2018 we visited the most import areas in the Casamance in South Senegal to record resightings of individual birds and describe godwit habitat. In this report we present a daily overview of our findings with photos, locations we visited, numbers present and the first conclusions and recommendations.

Literature

Groen, N.M., Kentie, R., Goeij, P. de, Verheijen, B., Hooijmeijer, J.C.E.W., Piersma, T.. 2012. A modern landscape ecology of black-tailed godwits: habitat selection in Southwest Friesland, The Netherlands. Ardea 100:19-28.

Hooijmeijer, J. C. E. W., Senner, N. R., Tibbitts, T. L., Gill, R. E. Jr, Douglas, D. C., Bruinzeel, L. W., Piersma, T.. 2013. Post- breeding migration of Dutch- breeding black- tailed godwits: Timing, routes, use of stopovers, and nonbreeding destinations. Ardea, 101, 141–152.

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Kentie, R., Senner, N. R., Hooijmeijer, J. C. E. W., Márquez-Ferrando, R., Masero, J. A., Verhoeven, M. A., Piersma, T.. 2016. Estimating the size of the Dutch breeding population of Continental Black- tailed Godwits from 2007–2015 using resighting data from spring staging sites. Ardea, 104, 213–225. https://doi.org/10.5253/arde.v104i3.a7

Márquez-Ferrando, R. Hooijmeijer, J. Groen, N. Piersma, T. Figuerola, J.. 2011. Could Doñana, SW Spain, be an important wintering area for continental Black-tailed Godwits Limosa limosa limosa? Wader Study Group Bulletin 118: 82-86.

Mulder, T. De Grutto in Nederland. 1972. Wetenschappelijke mededelingen van de Koninklijke Nederlandse Natuurhistorische Vereniging. Nr.90. Hoogwoud: KNNV.

Newton, I. 2004. The recent declines of farmland bird populations in Britain: an appraisal of causal factors and conservation actions. Ibis 146: 579-600.

Roodbergen, M., van der Werf, B. & Hötker, H. 2012. Revealing the contributions of reproduction and survival to the Europe-wide decline in meadow birds: review and meta-analysis. Journal of Ornithology 153: 53-74.

Teunissen, W., Schotman., A., Bruinzeel, L.W., Holt, H. ten., Oosterveld, E., Sierdsma, H., Wymenga, E., Melman, D.,. 2012. Op naar kerngebieden voor weidevogels in Nederland. Feanwâlden: Sovon-rapport 2012/21, A&W rapport-1799, Alterra- rapport 2344.

Teunissen, W. & Soldaat, L.. 2006. Recente aantalsontwikkeling van weidevogels in Nederland. De Levende Natuur 107: 70-74.

Thijsse, J.P.. 1904. Het Vogeljaar, Nederlandse vogels in hun leven geschetst. Amsterdam: W. Versluys.

Thorup, O.. 2006. Breeding waders in Europe2000. International Wader Study Group 14.

Tscharntke T., Klein A. M., Kruess A., Steffan-Dewenter I., &Thies C.. 2005. Landscape perspectives on agricultural intensification and biodiversity - ecosystem service management. Ecology Letters 8: 857-874. Verhoeven, M.A., Loonstra, A.H.J., Hooijmeijer, J.C.E.W., Masero, J.A., Piersma, T., Senner, N.R. 2018. Generational shift in spring staging site use by a long-distance migratory bird. Biology letters 14(2): 20170663. Verstrael, T.J.. 1987. Weidevogelonderzoek in Nederland. 's-Gravenhage: Contactcommissie Weidevogelonderzoek. Vickery, J.A., Tallowin, J.R., Feber, R.E., Asteraki E.J., Atkinson, P.W., Fuller, R.J., Brown, V.K. 2001. The management of lowland neutral grasslands in Britian: effects of agricultural practices on birds and their food resources. J. Appl. Ecol.: 38: 647-664.

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Daily reports

Map of the areas visited during the expedition, and showing the location of the famous Amalia!

29 August 2018 Today we travelled from The Netherlands to Senegal. We spent the night at hotel Begue Pokai in Toubab Dialaw at 40 min drive from the fancy new airport. Our guide Idrissa Ndiaye was already in the Casamance for 3 days to explore good sites for us to visit.

30 August 2018 An early start we left Dakar at 06h30, caught a flight to Ziguinchor at 09h00. Idrissa and driver Marcel were there to greet us. We headed straight to the field despite the pouring rain. We skipped the Colobane rice fields because of heavy rains. We continued along the road to Cap Skirring and found 190 godwits at the Niambalang mudflats east of Oussouye and managed to read 9 ring combinations. Godwits were roosting on the mudflats and foraging in the mud of a flooded and ploughed rice field. The field did not contain any rice seedlings only mud walls and raised mud in rows for where the rice would soon be planted.

The rain ensured that the water was about 30cm deep. Probing holes created by the foraging godwits could clearly be seen, with the highest intensity in the mud closest to the water. The penetrometer set up on the softest possible measure barely registered any resistance. The water in 3 different paddies had an exceptionally high pH around 9.5 and 10, salinity was very low 500 – 800 µS, and soil moisture was high 37 – 45% volume, measured with the Thetaprobe. We collected some mud samples with the 100 cm3 pf ring for further chemical and nutrient measures. We also captured 14 new survey sites by identifying the land use, and capturing representative photos of the area. We continued along this road and took the turnoff to Miomp where one of the transmitter birds had been located. Due to the bad condition of the road we could not get close enough to the exact site and decided to continue to the Cabrousse rice fields. Maintenance of the dikes, ploughing and

6 planting were in full swing and a lot of people were working in the field. No godwits were found here and they were not seen recently either.

It kept on raining (>70 mm today!) and on the way back to Bignona we stopped at the Colobane rice fields. But it was already getting too dark and most birds had probably already left to the roost. We only read 1 codeflag.

View from the plane of the rice fields adjacent to Ziguinchor, it’s the rainy season! The soil is waterlogged and the rice paddies are filled with water.

Godwits foraging on earthworms on the ploughed rice paddies.

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31 August 2018 The day started dry but as soon as we had reached the Baila mudflats it had started raining again. We scanned the mudflats but found no birds; perhaps the water level was too high for them to forage? We continued to the Dianki rice fields. On the way there we passed through several smaller rice field complexes but no godwits were encountered. In Dianki we spent the rest of the day scanning every corner of the rice fields but found no more than 100 individuals. A lot of people were in the field preparing the paddies or planting the rice. Almost all birds that we found, were foraging in recently ploughed parcels. We took several soil samples but did not find any obvious prey items. From the probing holes we could see that they were searching for food in the flanks of the small dikes, perhaps looking for spilled grains from the previous harvest that become available in the mud from the paddies that is used to reinforce the dikes? We also found 3 cm long earthworms in the fresh dikes; that could also be what they are looking for.

Regarding colour rings we did not have a very fruitful day. We checked at least 86 individuals but found only 1 bird of our scheme and 2 of the Spanish scheme.

In the Dianki rice field complex there is a huge dike, installed by international funding. The dike separates the rice paddies from a mangrove wetland. The recent heavy rains have filled all the existing rice paddies and the large water buffer area. The sluice gate in the dike was open allowing the excess rainwater to flow from the water buffer area into the mangrove wetland. Salinity measured in the water buffer areas and rice paddies in preparation for planting was really low 20 – 200 µS, in the mangrove wetland it was higher around 3.4 mS. The highest salinity was encountered in the abandoned salinized rice on the outside of the big dike 6.9 mS. pH in the different habitats ranged from 9.5 to 6.0 and the heavily flooded soils were soft measuring between 0.1 to 8.2 on the lowest combination of spring and cone. We collected a further 16 habitat description points noting the current season differences from our previous visit in Nov/Dec 2016.

Dianki rice fields water buffer area, filled with water and reeds.

01 September 2018 Good dry weather initially with no cloud cover, but later around 12 pm reached 100% cloud cover. A cool coastal breeze kept the temperature low, ~25 oC. A long walk today through the rice fields of Fintiok, Koubanao and Hatioune and adjacent mangrove wetlands, however quite informative in

8 terms of godwit foraging behaviour. We observed a group of godwits foraging both in the rice paddies, those which had been used as seedling nurseries – freshly harvested for replanting, and those that were ploughed and ready for planting, as well as in the extremely salty mangrove wetland adjacent to the rice fields (about 160 birds). The heavy rains ensured that all rice paddies and abandoned paddies were filled with fresh rainwater between 20 and 50 cm deep. Tussocks of grass were placed on the existing paddy walls for additional strengthening. These will dry later in the year and form part of the paddy wall maintenance. However at this moment these overturned tussocks were extremely interesting to godwits who were actively probing into these upside down tussocks, both the exposed tussocks and as far as we know the tussocks that were under the water. We carefully investigated a few of these paddies that were used for foraging and found many ~3cm red earthworms. The feeding efficiency showed quite a high success rate of between 18 and 25 food items per minute. Salinity measured in the fresh water rice paddies was really low at 440 µS, and penetration pressure was almost zero in the water logged clay.

In the adjacent mangrove wetland we measured hyper saline conditions of 44.3 mS, as well as penetration pressure of almost zero. The godwits were mainly foraging in shallow pools of ~15cm deep, or in shallow creeks. Feeding efficiency was quite high between 18 and 33 prey items per minute. We investigated the mud where they had been foraging and managed to find only one chironomid. We sampled the general area twice and sieved out the sample in the pools of water but were unable to find any more chironomids nor any other suitable candidate food items. This was strange given the high intake rates of the godwits. Nonetheless we took a full set of environmental measures and a representative soil sample in both the rice paddies and the mangrove wetland. We added a further 11 sites to our habitat description sample set.

Many people were working in the rice fields like in the fields we visited the previous days. Fintiok and also Koubanao still have the most well maintained fields; in Hatioune >75% had been abandoned and the dikes were not well maintained. We heard many times from local farmers that godwits come to the rice fields mainly in the early morning to forage. Later when the fields become full of people, most of them seem to move to the mangrove wetlands (tannes). Here they continue foraging or spend time roosting. We also heard from many farmers that the godwits caused serious damage by trampling the freshly planted seedlings. We did not see any birds in these kind of fields however. In total we saw about 200 individuals between 10:00 and 18:30; 75 in the rice fields and the rest in the tannes. It was a productive day colour-ringwise: we read 9 combinations, 7 were from our own scheme. 4 of them had been seen here in previous years.

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At the edge of the mangrove wetland and Fintiok rice paddies looking towards the approaching storm.

02 September 2018 The day started with an hour long rain shower, but by the time we were ready to head into the field the rain had stopped. Cloud cover was between 80 – 100% the rest of the day. The air temperature ranged from about 25 – 30oC. We met with some local master students from the university in Dakar that are doing a master on herons, Pape Cissao and Maryam, and together we explored the shores of the mangrove wetland near Tobor. We found several groups of godwits adding up to about 250 individuals and most of them were actively foraging in shallow water. Ideal situation for reading colour rings but unfortunately the ring density was low with only 2 birds from our own scheme. This time plenty of success in sampling the mud for prey items. The mud was filled with chironomids which was also shown by the high intake rates of 30 – 44 prey items per minute. Salinity measured 11.5 mS and penetration pressure was higher than yesterday’s measures ranging between 3 and 6, in the thick compacted clay. Abandoned rice fields flanked the mangrove wetland, they looked like they have not been active for years as they were fully invaded by local wetland reed species.

After lunch we explored the Colobane rice fields next to Ziguinchor, there were about 600 godwits in different groups that mixed and split up again. The birds were very relaxed around people and could be approached up to 40 meters. That was necessary if you wanted to read the colour rings because they were extremely stained and covered with a film of clay that made the rings almost impossible to read from a distance; we had experienced that in previous years at this site as well. Nevertheless we ended the afternoon with 27 resightings including many from other schemes and even a Finnish bird. Similar to yesterday the godwits were found in a recently ploughed rice field ready for planting. The water was deep ~50cm however the godwits were perched on the mud ridges probing for food items in the overturned grass and rice tussocks. Salinity was very low at 408 µS and penetration pressure was zero in the water logged clay of the mud ridges. We sampled the mud that was actively probed by the godwits 3 times with a sieve however, were unsuccessful in obtaining any suitable prey items from the mud. Again, a bit strange as the godwits who were actively foraging were finding between 16 and 32 prey items per minute. We asked one of the ladies who was planting rice seedlings in one of the fields if she had seen many worms while they were ploughing, she said a few weeks back when there was less water in the paddies the fields were full of worms.

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The shores of the mangrove wetland at Tobor.

03 September 2018 Another rainy start to the day, but after about an hour downpour the rain eased up. Cloud cover ranged from 90 -100%, and there were a few showers of rain on and off the whole day. The temperature ranged from 25 – 30 oC. We headed North East to a small protected area, Roneraie de Diognere which is situated in a bend of the Soungrougrou tributary of the Casamance River. A German transmitter bird called Melto, had been spending time in a large shallow wetland central to the protected area. We first had to cross the Soungrougrou River via ferry which took some time. We navigated to the nearest village – to the protected area - to ask the Chief permission to visit the area. They very enthusiastically received us and were very curious about our work. The Chief’s son joined us to help us navigate along the correct tracks to the edge of the river. From here we walked along the river bank until we reached the protected area. The Chief’s son was impressed about the walking conditions, the waterlogged clay was a bit slippery and he apparently doesn’t get to walk in these conditions very often. We passed by some rice fields adjacent to the lake, the women recognized the chiefs son and were animatedly surprised to see him. He was curious about our work though and asked many questions. We reached the very salty shallow lake but unfortunately did not have enough time to fully explore the whole area which would have taken more than a full day. Nonetheless we took some environmental measures as this was a rare opportunity to describe a remote environment visited by a satellite tagged godwit. The lake water was hyper saline at 52.7 mS and a soil penetration pressure ranging from 6.8 to 7.4. After this the Chief’s son could not bear to walk back along the muddy shore and suggested we take a “short cut” back to the track through the rice fields. This proved to be quite amusing as he was not sure of the way and had to ask the ladies working in the fields for direction because he had to admit that he had not been there for 20 years (the ladies were delighted). We were treated to a view of a large flock of flying pelicans, and ultimately we were successful in finding Marcel driving along the track back to the village. The making for the story of the year, we think, paying a relatively random visit to this remote village of very friendly people. On the way back to the ferry we stopped shortly to explore the shores of the Soungrougou River, but alas still no godwits. We added 12 sites to our wetlands habitat descriptions.

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The saline shallow lake within the Roneraie de Diognere protected area.

04 September 2018 Our last full field day, started off dry and cloudy 80-100% clouds. Rain showers occurred intermittently throughout the day, and the temperature was quite a bit higher than our previous days ranging from 30 – 35 oC. We explored Djifangor mudflats near Niaguis, a small mangrove protected area east of Ziguinchor. An amazing place with a great diversity of bird species including a super rare sighting of an African Skimmer and 2 Whitebacked Nightherons. A group of 86 godwits were present foraging in the shallow water so we took some environmental measures and a colour ring density sample. Salinity was quite high at 37 mS, and soil penetrability relatively low between 1.4 and 2. This was followed by an exploration of a rice complex near Agnack on the outskirts of Ziguinchor, salinity was really low 215 µS and soil penetration pressure was zero in the waterlogged mud. We found a large group of at least 200 godwits resting and preening in a ploughed rice field, a second smaller group were foraging. In this group we found 6 individuals of our own scheme. Like in most rice fields, the birds were extremely easy to approach up to 50 m. We investigated the mud in their rice paddy really well to try to determine what the godwits were eating. At first it looked like it would be unsuccessful, but then after carefully breaking apart a clump of mud around a godwit probing hole we noticed really tiny earthworms ~0.5mm in diameter and about 3 cm long. These tiny earthworms were so delicate that they easily disintegrated when we tried to collect them. Sieving didn’t yield anything as they were completely destroyed in the sieving process. So it seems earthworms are the key to the rice fields story at this time of the year.

We revisited Niambalang mudflats and found a flock of 500-600 godwits foraging in shallow water of the salty mangrove wetland just next to the road: easy peasy ringreading and in no time we had another 6 ring combinations. Birds were already moving out probably due to the incoming flood. Some of them were found back in a 2 hectare island in the middle of the mudflat a little further down the road, where someone apparently desperately tried to maintain some rice culture. But it will be a matter of time before this rice field will be abandoned. It was completely impossible to read rings here because the dikes were so high that you could barely see the birds’ heads.

Most of the godwits had flown to the same paddy and adjacent mangrove mudflats as on the 30th where they were resting, preening and foraging. However, the ploughed field was now freshly planted with rice seedlings. Perhaps the ploughed field with overturned grass tussocks as well as the

12 fresh rains flooding the paddies create the perfect probing environment for godwits. It seemed today that the addition of the rice seedlings did not deter the godwits from returning to this rice paddy and any trampling of the seedlings may occur accidentally. We managed to get a few extra resightings in this group before we returned to Bignona.

Godwits foraging in the saline shallow lake in the Djifangor mudflats.

Godwits resting and preening in a ploughed rice paddy, in the rice fields of Agnack.

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05 September 2018 On our final day in the Casamance we said goodbye to Toussaint and Bojang of Auberge Kayanior and headed immediately for the floodplains of Tobor. It was low tide and at first we did not find any birds but we discovered them finally in the large gully close to bridge behind Tobor. Most birds were just resting or preening and only about 60 of the 350 birds that were present were foraging. Despite the good ring reading conditions we only found 1 ringed bird. We picked up a Little Swift that apparently had fallen in the water at the bridge and fortunately it flew away perfectly after its wings had become dry again. We hurried to the Colobane rice fields near Ziguinchor, eager to read more rings on our final morning. We found a group of 700 birds more or less at the same location as earlier this week. Ring reading was good and from a close distance we identified 14 different individuals that were partly seen earlier this week.

To get rid of the mud we could take a shower at the house of Idrissa’s nephew, repack our suitcases and after lunch with the team Casamance 2018, Marcel dropped us off at Ziguinchor airport to take the 16:15 flight to Dakar. From there we took the 23:55 flight to Amsterdam and arrived there in the morning of the 6th.

Project Little Swift rescue!

Summary We are looking back on a very successful expedition. The rainy season gave us some free showers but the conditions were generally great to do field work. There was a good cloud cover on most of the days and with a bit of wind and rain, the weather was really just fine. Road conditions were no worse than in other years and we could reach any site that we wanted to go to. Thanks to Idrissa, Marcel and Issa Sylla, logistics were perfectly arranged. The heavy rains filled all the rice paddies which completely waterlogged the soil and created a soft muddy bottom, very different from our previous visit in Nov/Dec 2016 when all the water was drained out of the rice paddies and the clay was baked as hard as concrete.

We found a good number of birds this year; about 2150 if you would simply add up the maximum numbers encountered at each site. But we know that godwits exchange a lot between sites and several birds were seen at multiple locations within this week. And scrolling through their life histories it became quite clear that individual birds frequent the same sites over the years. We

14 scored 89 resightings of our own scheme and 21 from other ringing schemes in 8 days of fieldwork; these 89 resightings represented 72 individuals. More than 99% of the birds were in full winter plumage and with an average fat-score of 3,5 (n=43; API scale 1-5), they were in excellent condition and ready for a consecutive flight to Guinea Bissau or even further.

Foraging individuals were mostly found in two kinds of habitats: either in more or less saline mudflats or in recently ploughed rice fields. In the first habitat they apparently were foraging on Chironomids but in the latter they seemed to be after different kinds of worms. We found two kinds of worms: 3 cm long and 2 mm thick ones that looked like small earthworms and 3 cm long and 0.5 mm thick ones. The first ones were found in the drier parts of the ploughed fields, either in the small dikes or in clumps of mud that were just above the water level. The thin worms seemed to be much more confined to the parts of the rice fields that were fully covered with water. This is unlike the rice fields in Iberia; godwits in West Africa don’t seem to forage on spilled rice from the previous harvest, despite the fact that they are present at exactly the same period of the rice cultivation cycle. In the samples we explored, we did not find any rice kernels, which is also very different from the situation in Iberia. So we learned that the presence of foraging godwits indicated the presence of worms in the freshly ploughed (or freshly seeded) rice paddies or the presence of Chironomids in the more saline mangrove wetlands.

We collected 78 new habitat descriptions with the current wet season conditions, as well as 8 sets of mud samples (in sets of 3) for further analysis for chemical residues, organic matter content and texture analysis. Our samples ranged from the rice fields and mangrove wetlands neighbouring Ziguinchor city, to really remotely located sites, therefore we expect some differences in chemical residues. Additionally we managed to get a good sample of the chironomids and the larger earthworms, but we were not so successful in collecting the small earthworms (just 2!).

A striking observation was the almost complete absence of shelled benthos in the mangrove mudflats and rice fields. We could walk through most of these habitats without shoes (since the sticky mud often sucked our shoes off our feet). This is likely caused by the overexploitation of people gathering these species from the mud for food, as we passed many very large piles of stacked empty shells on the side of the road. These shells are incorporated into cement used for building. On the other hand rice fields and mangrove wetlands near human settlements contained quite a lot of rubbish, e.g. plastic and glass bottles, broken glass, bits of broken concrete (with mangrove benthos shells incorporated into the concrete).

Like in previous years, we heard stories about damage caused by godwits but that differed a lot from site to site. It is clear that godwits were attracted to ploughed rice fields but they kept visiting these fields after the rice seedlings have been planted. We were told that in the Casamance it is not possible to sow rice directly in the paddies because the early arriving godwits would eat the rice. No farmers seem to try that anymore so we cannot confirm that godwits would indeed eat rice in July/ August when the rains arrive. Nowadays the main damage will be caused by trampling freshly planted and not yet established rice seedlings. A solution could be to plough many rice fields at the same time so that the godwits would be diluted over many fields. What we witnessed this week is that there were only a few paddies in each rice field complex that were recently ploughed in the past two weeks and that a lot of godwits were found in just a few paddies which might indeed cause damage. The limiting factor here is that the preparation of the fields has to be done completely manually: there simply is not enough man/ woman(!)-power to achieve this. We did not witness anyone chasing godwits from freshly planted fields and hunting does not seem to be an issue either. People just seem to live the fact that they are there.

This expedition was funded by Birdlife Netherlands, University of Groningen, the Spinoza premium (NWO) to TP and supported by Global Flyway Network.

15

Greetings from Team Casamance 2018, Idrissa, Jos, Ruth and Marcel.

16

Overview Black-tailed Godwit Resightings Observer: Jos Hooijmeijer

Name Ringer: Ysbrand Galama Colourcode: 1L194B Name 2nd Ringer: Riemer Miedema Ringnr: 1L194B Ringing Date: 19-5-2017 Ringing site: Workum, Workumer Nieuwland Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.95500 N 5.43194 E

Resightings of this bird:

Date Site Observer(s)

28-8-2018 Fintiok 12.655 N -16.113 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 1 Name Ringer: Marycha Franken Colourcode: 1L2HYB Name 2nd Ringer: Ringnr: 1L2HYB Ringing Date: 21-5-2018 Ringing site: Stavoren, Zuidermeerpolder Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.87611 N 5.38361 E

Resightings of this bird:

Date Site Observer(s)

27-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Pablo Macias Torres

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 2 Name Ringer: João Guilherme Colourcode: 1LA67B Name 2nd Ringer: Rosemarie Kentie Ringnr: 1421043 Ringing Date: 5-5-2008 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

28-3-2013 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama Gjerryt Hoekstra

2-4-2013 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

23-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

31-5-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

1-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

5-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

14-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

15-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

1-4-2016 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Jelle Loonstra

30-4-2016 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Iris Bontekoe

28-10-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Ysbrand Galama

vrijdag 7 september 2018 Page 3 29-4-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

8-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

8-6-2018 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jos Hooijmeijer

30-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 4 Name Ringer: Egbert van der Velde Colourcode: 1LEEEB Name 2nd Ringer: Bert Zijlstra (RUG) Ringnr: 1LEEEB Ringing Date: 18-5-2013 Ringing site: Idzegea, It Joo Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.98583 N 5.55500 E

Resightings of this bird:

Date Site Observer(s)

3-7-2013 Blauwhuis, Jacobidyk 53.01667 N 5.53333 E The Netherlands Egbert van der Velde

23-3-2016 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Ysbrand Galama

6-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

31-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

15-6-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 5 Name Ringer: Gjerryt Hoekstra Colourcode: 1LKTCB Name 2nd Ringer: Ringnr: 1LKTCB Ringing Date: 13-5-2014 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

26-6-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Wiebe Kaspersma Jelle Loonstra

30-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

2-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

3-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rene Faber

4-5-2016 Idzegahuizum, Polder Kooihuizen-Noord 53.04667 N 5.41806 E The Netherlands Guillaume Senterre

10-6-2016 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Guillaume Senterre

23-6-2016 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Guillaume Senterre

8-12-2016 Baila, Baila mudflats 12.88894 N 016.37945 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

24-5-2017 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Age Hulder Mo Verhoeven

8-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

10-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

22-3-2018 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Henri Zomer

vrijdag 7 september 2018 Page 6 30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 7 Name Ringer: Rosemarie Kentie Colourcode: 1LV60B Name 2nd Ringer: Ringnr: 1438668 Ringing Date: 18-5-2010 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

21-3-2015 Leidschendam, Starrevaart 52.10000 N 4.43333 E The Netherlands Sjaak Schilperoort

20-3-2016 Uitgeest, Uitgeesterbroekpolder 52.52222 N 4.74000 E The Netherlands Maarten Hotting

4-9-2018 Agnack, Agnack ricefields 12.592 N -16.117 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 8 Name Ringer: Marycha Franken Colourcode: 1LVT2B Name 2nd Ringer: Ringnr: 1LVT2B Ringing Date: 31-5-2017 Ringing site: Stavoren, Zuidermeerpolder Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.87611 N 5.38361 E

Resightings of this bird:

Date Site Observer(s)

30-6-2017 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Jos Hooijmeijer

18-7-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jos Hooijmeijer

30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 9 Name Ringer: University of Groningen Colourcode: A0LLYR Name 2nd Ringer: Ringnr: LLYR Ringing Date: 1-1-2001 Ringing site: Unknown Age (in days; 50 = juv.; 99 = ad.): 99

Resightings of this bird:

Date Site Observer(s)

29-3-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

4-4-2017 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Jan Kramer Eelco Brandenburg

4-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Mario Huizinga

7-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

17-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Westerhuis Jacob Westerhuis

17-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Kees de Jager

24-3-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands IVN Skrok en Skrins

26-3-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride Jos Hooijmeijer

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 10 Name Ringer: Unknown Unknown Colourcode: A0RRRL Name 2nd Ringer: Ringnr: RRRL Ringing Date: 1-1-2004 Ringing site: Unknown Age (in days; 50 = juv.; 99 = ad.): 99

Resightings of this bird:

Date Site Observer(s)

30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 11 Name Ringer: Nathan Senner Colourcode: B3BBLY Name 2nd Ringer: Ringnr: 2505041 Ringing Date: 30-5-2014 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

3-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

16-6-2014 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

23-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

12-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

8-3-2015 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Haije Valkema

24-3-2015 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Haije Valkema

7-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Piet Wiepke Bouma

1-6-2015 Hindeloopen, Grote Wiskepolder 52.93694 N 5.43194 E The Netherlands Alice McBride

11-6-2015 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Jan Kramer

19-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

19-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

vrijdag 7 september 2018 Page 12 19-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

31-3-2016 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Mo Verhoeven

29-5-2016 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jos Hooijmeijer

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

6-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

6-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

20-3-2017 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

12-5-2017 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Jos Hooijmeijer

9-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

20-3-2018 Oostknollendam, Wormer- en Jisperveld 52.51361 N 4.79389 E The Netherlands Kees de Jager Noord

27-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

17-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 13 5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 14 Name Ringer: Jos Hooijmeijer Colourcode: B3BRRR Name 2nd Ringer: Sylke Hooijmeijer Ringnr: 2510236 Ringing Date: 3-5-2018 Ringing site: Koudum, Polder De Samenvoeging Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.91000 N 5.46139 E

Resightings of this bird:

Date Site Observer(s)

29-5-2018 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jos Hooijmeijer

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 15 Name Ringer: Egbert van der Velde Colourcode: B3BRRY Name 2nd Ringer: Tim van der Meer Ringnr: 2510147 Ringing Date: 23-5-2017 Ringing site: Sanfirden, Sanfurd Ringwielkant Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.98167 N 5.53500 E

Resightings of this bird:

Date Site Observer(s)

10-6-2017 Sanfirden, Sanfurd Ringwielkant 52.98167 N 5.53500 E The Netherlands Egbert van der Velde

16-6-2017 Sanfirden, Sanfurd Ringwielkant 52.98167 N 5.53500 E The Netherlands Egbert van der Velde

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

19-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

19-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Wim Tijsen

26-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

2-6-2018 Gaastmeer, Yntemapolder 52.96194 N 5.53750 E The Netherlands Egbert van der Velde

22-6-2018 Boazum, Indijk 53.10 N 5.71 E The Netherlands Jan Kramer

23-6-2018 Boazum, Indijk 53.10 N 5.71 E The Netherlands Jan Kramer

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 16 Name Ringer: Alice McBride Colourcode: B3RYBY Name 2nd Ringer: Mo Verhoeven Ringnr: 2504883 Ringing Date: 3-6-2014 Ringing site: Hindeloopen, Polder Folkertsma Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.93944 N 5.41389 E

Resightings of this bird:

Date Site Observer(s)

6-6-2014 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Mo Verhoeven Alice McBride

18-6-2014 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Mo Verhoeven Alice McBride

27-6-2014 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Nathan Senner

28-6-2014 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Mo Verhoeven

14-7-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

8-3-2015 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Bert Zijlstra

17-3-2015 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Anneke Zeinstra

19-3-2015 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Wiebe Kaspersma

4-6-2015 Hindeloopen, Grote Wiskepolder 52.93694 N 5.43194 E The Netherlands Alice McBride

17-6-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Atser Sybrandy (RUG)

20-8-2015 Dianki 12.87500 N -16.46278 W Senegal Jos Hooijmeijer Haije Valkema Khady Gueye

23-11-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

27-3-2016 Hindeloopen, Grote Wiskepolder 52.93694 N 5.43194 E The Netherlands Wiebe Kaspersma

vrijdag 7 september 2018 Page 17 8-4-2016 Hindeloopen, Stoenckherne 52.94472 N 5.41361 E The Netherlands Piet Wiepke Bouma

8-4-2016 Hindeloopen, Stoenckherne 52.94472 N 5.41361 E The Netherlands Piet Wiepke Bouma

9-4-2016 Hindeloopen, Stoenckherne 52.94472 N 5.41361 E The Netherlands Piet Wiepke Bouma

12-4-2016 Hindeloopen, Stoenckherne 52.94472 N 5.41361 E The Netherlands Piet Wiepke Bouma

15-6-2016 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

2-9-2016 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Khady Gueye

13-3-2017 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Wiebe Kaspersma

26-3-2017 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama Alice McBride

13-6-2017 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Age Hulder Ysbrand Galama

24-6-2017 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Tim van der Meer

7-3-2018 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Heije Hoekema

28-3-2018 Hindeloopen, Polder Folkertsma 52.93944 N 5.41389 E The Netherlands Wiebe Kaspersma

27-5-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

27-8-2018 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 18 Name Ringer: Egbert van der Velde Colourcode: B3YBLL Name 2nd Ringer: Mark Walinga Ringnr: 2510324 Ringing Date: 10-5-2015 Ringing site: Oudega, Tsjerkemar Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99833 N 5.55361 E

Resightings of this bird:

Date Site Observer(s)

11-6-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

23-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

25-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

25-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

30-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

30-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

30-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

7-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

13-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

28-2-2016 Medellín 38.98861 N -5.96056 W Spain Fernando Yuste

28-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Fernando Yuste

23-3-2016 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Haije Valkema

10-6-2016 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 19 10-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

12-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

12-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Wiebe Kaspersma

11-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

16-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

15-6-2017 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

17-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Astrid Kant Ronald Messemaker

17-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Astrid Kant Ronald Messemaker

26-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

11-6-2018 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 20 Name Ringer: Egbert van der Velde Colourcode: B3YYYR Name 2nd Ringer: Haije Valkema Ringnr: 2503253 Ringing Date: 9-5-2012 Ringing site: Idzegea, It Joo Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.98583 N 5.55500 E

Resightings of this bird:

Date Site Observer(s)

7-6-2012 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde Haije Valkema

3-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

4-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

6-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

7-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

8-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

19-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rene Faber Erva

17-3-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

19-3-2013 Abbega, Hissedijk 53.00111 N 5.57222 E The Netherlands Mélodie Tort Marta Lomas Vega

19-3-2013 Abbega, Hissedijk 53.00111 N 5.57222 E The Netherlands Jouke van der Meulen

20-3-2013 Abbega, Hissedijk 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Bert Zijlstra (RUG)

20-3-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Marta Lomas Vega

4-4-2013 Oudega, Sypset 53.00028 N 5.53556 E The Netherlands Jouke van der Meulen

vrijdag 7 september 2018 Page 21 12-4-2013 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Chris de Jong

23-4-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

18-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

23-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

25-6-2013 Idzegea, Bratte Polder 52.97528 N 5.55056 E The Netherlands Egbert van der Velde

26-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

11-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

11-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

14-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

20-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

20-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

21-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

25-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Fernando Yuste

25-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

25-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

vrijdag 7 september 2018 Page 22 15-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

8-4-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

9-4-2014 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

11-4-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

25-11-2014 Reina 11.94876 N -15.81112 W Guinea Bissau Jos Hooijmeijer Hamilton Monteiro

7-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

21-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

21-2-2015 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

25-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

25-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

26-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

26-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

6-3-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Haije Valkema

12-3-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

16-3-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

15-6-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 23 13-8-2015 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye

20-8-2015 Dianki 12.87500 N -16.46278 W Senegal Jos Hooijmeijer Haije Valkema Khady Gueye

9-12-2015 Reina 11.94876 N -15.81112 W Guinea Bissau Jos Hooijmeijer Haije Valkema Hamilton Monteiro

8-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

8-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

24-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Haije Valkema

7-3-2016 Uitwellingerga, Geau Polder en de Graverij 53.010 N 5.734 E The Netherlands Egbert van der Velde

8-3-2016 Uitwellingerga, Geau Polder en de Graverij 53.010 N 5.734 E The Netherlands Haije Valkema

8-3-2016 Uitwellingerga, Geau Polder en de Graverij 53.010 N 5.734 E The Netherlands Egbert van der Velde

15-3-2016 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Egbert van der Velde

15-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

2-9-2016 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Khady Gueye

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 24 2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

5-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

8-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

8-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

8-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

12-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

13-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

13-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

16-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva Ronald Messemaker

16-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva Ronald Messemaker

18-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva Ronald Messemaker

18-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Coenen

18-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva Ronald Messemaker

19-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Jacob de Vries Erva

20-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Jouke Altenburg Erva

10-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 25 11-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

14-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

16-3-2017 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

2-6-2017 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama Anna Hatsagi

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Haije Valkema

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

14-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Egbert van der Velde

15-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

16-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

20-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

20-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

20-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Wim Tijsen

8-3-2018 Briollay, Vérigné 47.583 N -0.500 W France Fabrice Rayer

14-3-2018 Wormer, Wormer en Jisperveld 52.51528 N 4.80694 E The Netherlands Reinier Krom

14-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 26 26-3-2018 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

10-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer

14-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

18-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer Eus de Groot

18-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

19-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

19-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

25-6-2018 Harich, Trophorne 52.93889 N 5.57222 E The Netherlands Jos Hooijmeijer

27-8-2018 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 27 Name Ringer: Wiebe Kaspersma Colourcode: B4BBLL Name 2nd Ringer: Ringnr: 2511874 Ringing Date: 23-5-2018 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

12-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

16-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

16-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

21-6-2018 Harich, Trophorne 52.93889 N 5.57222 E The Netherlands Wiebe Kaspersma Ysbrand Galama

2-9-2018 Tobor 12.6597 N -16.26313 W Senegal Jos Hooijmeijer Idrissa Ndiaye Pape Cissao Diedhiou

vrijdag 7 september 2018 Page 28 Name Ringer: Egbert van der Velde Colourcode: B5BLLL Name 2nd Ringer: Ringnr: 2505160 Ringing Date: 7-5-2014 Ringing site: Heeg, De Pine Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.97889 N 5.58306 E

Resightings of this bird:

Date Site Observer(s)

15-6-2014 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

16-6-2014 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

17-6-2014 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

19-6-2014 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

12-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

10-3-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Haije Valkema

16-3-2015 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Haije Valkema

11-4-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

26-4-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

6-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

9-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

23-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

24-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 29 25-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

25-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

8-2-2016 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

21-3-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

14-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

18-1-2017 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

13-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

16-3-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

6-5-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

12-6-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

10-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jos Hooijmeijer Libbe Zijlstra

30-3-2018 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

26-5-2018 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

11-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

21-6-2018 Harich, Trophorne 52.93889 N 5.57222 E The Netherlands Ysbrand Galama Wiebe Kaspersma

vrijdag 7 september 2018 Page 30 30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 31 Name Ringer: Atser Sybrandy Colourcode: B5LBRY Name 2nd Ringer: Ringnr: 2505294 Ringing Date: 16-5-2014 Ringing site: Workum, Workumermeer Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.99278 N 5.46389 E

Resightings of this bird:

Date Site Observer(s)

26-5-2014 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Atser Sybrandy Jelle Loonstra

2-8-2014 Hiers-Brouage, Fousil 45.839 N -1.036 W France Loïc Jomat

3-6-2015 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

24-6-2015 Idzegea, Bratte Polder 52.97528 N 5.55056 E The Netherlands Egbert van der Velde

5-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

6-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Kees de Jager

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 32 Name Ringer: Nathan Senner Colourcode: B5RBBR Name 2nd Ringer: Ringnr: 2505017 Ringing Date: 3-5-2014 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

14-6-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber (RUG)

8-3-2015 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Bert Zijlstra

11-3-2015 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Haije Valkema

18-3-2015 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Egbert van der Velde

12-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

21-3-2016 Koudum, Polder Groote Wester Gersloot- 52.90278 N 5.44722 E The Netherlands Wiebe Kaspersma Oost, De Poel

8-6-2016 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

28-6-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

28-6-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

29-6-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 33 7-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

11-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

21-3-2017 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Wiebe Kaspersma West

26-5-2017 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Jos Hooijmeijer Marycha Franken

4-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

19-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Ysbrand Galama

9-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

4-9-2018 Agnack, Agnack ricefields 12.592 N -16.117 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 34 Name Ringer: Nathan Senner Colourcode: B5YBLL Name 2nd Ringer: Mo Verhoeven Ringnr: 2505097 Ringing Date: 29-4-2014 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

9-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

18-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

19-6-2014 Idzegea, Bratte Polder 52.97528 N 5.55056 E The Netherlands Egbert van der Velde

19-6-2014 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Haije Valkema

13-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

12-3-2015 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Ysbrand Galama Soal

12-3-2015 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Gjerryt Hoekstra Soal

15-3-2015 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Teade de Boer Soal Rienk Jelle Hibma Pieter Breeuwsma

17-3-2015 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

15-4-2015 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

16-6-2015 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Age Hulder Wiebe Kaspersma

26-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

2-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

vrijdag 7 september 2018 Page 35 7-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

10-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

12-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

21-3-2016 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Wender Bil

7-6-2016 Easterlittens, Wammert, Wammerterpolder 53.13694 N 5.68306 E The Netherlands Guillaume Senterre Jos Hooijmeijer

6-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

7-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

17-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

17-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

6-4-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

21-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

18-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

9-7-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 36 Name Ringer: Rinkje van der Zee Colourcode: B5YLLL Name 2nd Ringer: Ringnr: 2505454 Ringing Date: 18-5-2013 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

2-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

12-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven

22-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven

1-4-2014 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Jelle Loonstra

17-5-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Dolf van der Gaag

29-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven Alice McBride

29-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven Alice McBride

31-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven Nathan Senner

3-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

4-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Jelle Loonstra Alice McBride

19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

31-3-2015 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

24-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

vrijdag 7 september 2018 Page 37 19-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Wiebe Kaspersma

20-6-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

5-4-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jos Hooijmeijer Gjerryt Hoekstra

26-4-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Taeke Roosjen

30-5-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Atser Sybrandy (RUG)

17-6-2016 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Gjerryt Hoekstra

20-6-2016 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Gjerryt Hoekstra

22-6-2016 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Jos Hooijmeijer

24-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

25-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Ysbrand Galama

1-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Drew Bingrun

2-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

4-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

6-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

vrijdag 7 september 2018 Page 38 6-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Wiebe Kaspersma

7-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

9-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

9-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Wiebe Kaspersma

9-2-2017 Hernan Cortes - Santa Amalia 39.030 N -5.959 W Spain Jos Hooijmeijer

10-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

20-3-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

1-5-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jan Kramer

7-5-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Piet Feenstra

9-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Mo Verhoeven

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 39 Name Ringer: Rinkje van der Zee Colourcode: B5YLYB Name 2nd Ringer: Ringnr: 2505451 Ringing Date: 18-5-2013 Ringing site: Workum, Workumerbinnenwaard-Zuid Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.97917 N 5.41917 E

Resightings of this bird:

Date Site Observer(s)

27-3-2014 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

1-4-2014 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jelle Loonstra

18-10-2014 Palmarin, Fata 14.09972 N -16.78222 W Senegal Khady Gueye

21-4-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

4-7-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Ysbrand Galama

7-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Dirk Kuiken

8-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Haije Valkema

8-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Haije Valkema

9-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

4-8-2015 Huelva, Parque Natural de las Marismas 37.23333 N -6.96667 W Spain José Manuel Méndez Garcia del Odiel

22-3-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

28-4-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

13-5-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Rene Faber

vrijdag 7 september 2018 Page 40 17-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jos Hooijmeijer

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jos Hooijmeijer

8-12-2016 Baila, Baila mudflats 12.88894 N 016.37945 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

2-4-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride Gjerryt Hoekstra

14-4-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

24-6-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jelle Loonstra Wiebe Kaspersma

11-7-2017 Hinnaard 53.11750 N 5.66278 E The Netherlands Jos Hooijmeijer

8-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

21-4-2018 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride Gjerryt Hoekstra

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 41 Name Ringer: Merlijn de Graaf Colourcode: B5YRLL Name 2nd Ringer: Ringnr: 2505209 Ringing Date: 19-5-2013 Ringing site: Makkum, Makkumermeer Zuid Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.05694 N 5.44056 E

Resightings of this bird:

Date Site Observer(s)

20-6-2013 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Jelle Loonstra

3-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

25-3-2014 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Rosemarie Kentie

15-4-2014 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Rosemarie Kentie

8-5-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

17-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Heije Hoekema

19-6-2014 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Jelle Loonstra

23-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Arjan Hell

23-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jelle Loonstra

25-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jos Hooijmeijer

27-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Anneke Zeinstra

5-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 42 5-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

7-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

20-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

23-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

12-3-2015 Makkum, Makkumer Zuidwaard 53.04472 N 5.38722 E The Netherlands Gjerryt Hoekstra

20-4-2015 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Emma Penning

9-6-2015 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Emma Penning

19-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jelle Loonstra Ester Schaaf

19-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Wiebe Kaspersma

21-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Wiebe Kaspersma Marijke de Bar

21-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

21-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rene Faber

3-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

vrijdag 7 september 2018 Page 43 3-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

23-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

23-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

25-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Egbert van der Velde

10-4-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

14-6-2016 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Jan Kramer Eric ten Cate

14-6-2016 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Guillaume Senterre

17-6-2016 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Sofia Briosa e Scheltinga

22-6-2016 Gaastmeer, De Lange Hoek 52.95000 N 5.53333 E The Netherlands Egbert van der Velde

24-6-2016 Gaastmeer, De Lange Hoek 52.95000 N 5.53333 E The Netherlands Egbert van der Velde

30-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

4-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 44 5-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

7-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Siebe (RUG) Bonthuis

7-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

17-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

18-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Jan Vegelin Erva

19-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal José Alves Erva Jenny Gill Graham Appleton

8-4-2017 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Age Hulder

12-6-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

2-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

2-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Kees de Jager Erva, East

7-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Kees de Jager

7-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

8-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

29-3-2018 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Ysbrand Galama Riemer Miedema

10-4-2018 Makkum, Makkumermeer Zuid 53.05694 N 5.44056 E The Netherlands Tim Oortwijn

vrijdag 7 september 2018 Page 45 18-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 46 Name Ringer: Haije Valkema Colourcode: B6BRRL Name 2nd Ringer: Ringnr: 2504922 Ringing Date: 18-5-2015 Ringing site: Idzegea, De Geeuw Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.98417 N 5.56722 E

Resightings of this bird:

Date Site Observer(s)

14-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

16-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

16-6-2015 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde

17-6-2015 Rotsterhaule 52.928889 N 5.851944 E The Netherlands Simon de Winter

18-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

9-7-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Ysbrand Galama

5-11-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

30-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

30-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

24-3-2016 Sanfirden, Sanfurd Brekkenkant 52.98889 N 5.53111 E The Netherlands Egbert van der Velde

15-6-2016 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

17-6-2016 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Sofia Briosa e Scheltinga

22-6-2016 Gaastmeer, De Lange Hoek 52.95000 N 5.53333 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 47 26-10-2016 Isla Mayor, Veta la Palma, rice fields 37.03556 N -6.19500 W Spain Ysbrand Galama

26-10-2016 Isla Mayor, Veta la Palma, rice fields 37.03556 N -6.19500 W Spain Ysbrand Galama

17-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

17-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

27-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

6-6-2017 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde Mo Verhoeven

20-6-2017 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Egbert van der Velde

20-6-2017 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer

20-6-2017 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Wiebe Kaspersma Anna Hatsagi

24-6-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Tim van der Meer

25-6-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

21-3-2018 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Egbert van der Velde

26-5-2018 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Bert Zijlstra

15-6-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 48 Name Ringer: Atser Sybrandy Colourcode: B6LBBB Name 2nd Ringer: Ringnr: 2505197 Ringing Date: 9-5-2015 Ringing site: Workum, Polder de Beveiliging Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99111 N 5.44694 E

Resightings of this bird:

Date Site Observer(s)

22-5-2015 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Atser Sybrandy (RUG)

18-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

18-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

26-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

25-8-2015 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Haije Valkema Khady Gueye

6-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

17-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

12-6-2017 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama Mo Verhoeven

5-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

13-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 49 Name Ringer: Haije Valkema Colourcode: B6LRRL Name 2nd Ringer: Ringnr: 2505236 Ringing Date: 18-5-2014 Ringing site: Idzegea, Bratte Polder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.97528 N 5.55056 E

Resightings of this bird:

Date Site Observer(s)

12-6-2014 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

18-6-2014 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

25-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

26-6-2014 Kleine Gaastmeer, Kaappolder West 52.97444 N 5.50528 E The Netherlands Haije Valkema Jos Hooijmeijer

28-6-2014 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

17-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 50 Name Ringer: Egbert van der Velde Colourcode: B6LRRR Name 2nd Ringer: Ringnr: 2504747 Ringing Date: 28-5-2016 Ringing site: Gaastmeer, Grutte Polder Noordwest Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.96472 N 5.55611 E

Resightings of this bird:

Date Site Observer(s)

7-6-2016 Easterlittens, Wammert, Wammerterpolder 53.13694 N 5.68306 E The Netherlands Guillaume Senterre Jos Hooijmeijer

16-3-2017 Uitwellingerga, Geau Polder en de Graverij 53.010 N 5.734 E The Netherlands Egbert van der Velde

14-6-2017 Gaastmeer, Grutte Polder Noordwest 52.96472 N 5.55611 E The Netherlands Tim van der Meer

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Astrid Kant Ronald Messemaker

19-3-2018 Smallebrugge 52.954316 N 5.644302 E The Netherlands Egbert van der Velde

5-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 51 Name Ringer: Gjerryt Hoekstra Colourcode: B6YBLY Name 2nd Ringer: Ringnr: 2505170 Ringing Date: 6-5-2014 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

13-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

14-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

14-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

21-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

17-3-2015 Makkum, Makkumer Zuidwaard 53.04472 N 5.38722 E The Netherlands Emma Penning

20-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Willem de Wolf

10-6-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Emma Penning Gjerryt Hoekstra

6-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

7-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

10-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

10-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

22-3-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

17-5-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

vrijdag 7 september 2018 Page 52 19-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Wim Tijsen

17-4-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

14-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

22-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Egbert van der Velde

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 53 Name Ringer: Sjoerd Hobma Colourcode: C1WWWP Name 2nd Ringer: Ringnr: 2511632 Ringing Date: 17-5-2012 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 4 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

5-5-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

12-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

6-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 54 Name Ringer: Jan F de Jong Colourcode: G1GPCW Name 2nd Ringer: Paules Brouwer Ringnr: 2512348 Ringing Date: 2-6-2018 Ringing site: Buren, Grie Age (in days; 50 = juv.; 99 = ad.): 17 The Netherlands 53.44639 N 5.82000 E

Resightings of this bird:

Date Site Observer(s)

29-7-2018 Ballum, Lange Sloot 53.428428 N 5.691421 E The Netherlands Jan F de Jong

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 55 Name Ringer: Atser Sybrandy Colourcode: G2PGPW Name 2nd Ringer: Rienk Jelle Hibma Ringnr: 2512964 Ringing Date: 6-5-2018 Ringing site: Wommels, Zuidhoeksterpolder, Slachtedyk Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.09639 N 5.56361 E

Resightings of this bird:

Date Site Observer(s)

14-6-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

31-8-2018 Dianki 12.87500 N -16.46278 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 56 Name Ringer: Fred Cottaar Colourcode: G3PGCC Name 2nd Ringer: Dirk Tanger Ringnr: 2505540 Ringing Date: 30-4-2017 Ringing site: De Woude, Westwouderpolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.54639 N 4.76722 E

Resightings of this bird:

Date Site Observer(s)

5-5-2017 De Woude, Westwouderpolder 52.54639 N 4.76722 E The Netherlands Kees de Jager

21-5-2017 De Woude, Westwouderpolder 52.54639 N 4.76722 E The Netherlands Kees de Jager

19-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

7-4-2018 De Woude, Westwouderpolder 52.54639 N 4.76722 E The Netherlands Kees de Jager

6-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 57 Name Ringer: Fred Cottaar Colourcode: G3PGCW Name 2nd Ringer: Dirk Tanger Ringnr: 2505542 Ringing Date: 5-5-2017 Ringing site: De Woude, Westwouderpolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.54639 N 4.76722 E

Resightings of this bird:

Date Site Observer(s)

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

7-4-2018 De Woude, Westwouderpolder 52.54639 N 4.76722 E The Netherlands Kees de Jager

10-5-2018 De Woude, Westwouderpolder 52.54639 N 4.76722 E The Netherlands Kees de Jager

4-9-2018 Agnack, Agnack ricefields 12.592 N -16.117 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 58 Name Ringer: Astrid Kant Colourcode: G5CCWP Name 2nd Ringer: Els Oostenbrink Ringnr: 2515234 Ringing Date: 21-5-2018 Ringing site: Kedichem, Polder Vijfheerenlanden West Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.89278 N 5.03278 E

Resightings of this bird:

Date Site Observer(s)

11-6-2018 Kedichem, Polder Vijfheerenlanden West 51.89278 N 5.03278 E The Netherlands Astrid Kant

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 59 Name Ringer: Astrid Kant Colourcode: G5CPGW Name 2nd Ringer: Ringnr: 2508439 Ringing Date: 1-5-2016 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

7-7-2016 Tiguet, Station Biologique du PN du 16.35000 N -16.26667 W Senegal Khady Gueye Djoudj

7-7-2016 Tiguet, Station Biologique du PN du 16.35000 N -16.26667 W Senegal Haije Valkema Djoudj

5-3-2017 Lexmond, Achthoven, Lekuiterwaard 51.96750 N 5.01472 E The Netherlands Tom van Kerkhoff

24-3-2017 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

29-3-2018 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

10-5-2018 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 60 Name Ringer: Astrid Kant Colourcode: G5PCCW Name 2nd Ringer: Ringnr: 2515290 Ringing Date: 26-5-2017 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 10 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

28-8-2018 Koubanao 12.65385 N -16.09191 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 61 Name Ringer: Astrid Kant Colourcode: G5WWCG Name 2nd Ringer: Ringnr: 2513501 Ringing Date: 14-5-2016 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

20-5-2016 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

27-5-2016 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

10-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

12-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

14-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

15-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

22-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

25-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

26-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

1-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

2-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

3-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

vrijdag 7 september 2018 Page 62 6-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

6-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

14-4-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

7-5-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

8-5-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

21-6-2017 Tiguet, Station Biologique du PN du 16.35000 N -16.26667 W Senegal Idrissa Ndiaye Djoudj

6-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Kees de Jager

6-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

9-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

9-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

25-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

30-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

31-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

6-4-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 63 Name Ringer: Manolo Vazquez Colourcode: L1LLYR Name 2nd Ringer: Carlos Moreno Ringnr: 4108683 Ringing Date: 6-11-2011 Ringing site: Isla Mayor, Veta la Palma Age (in days; 50 = juv.; 99 = ad.): 99 Spain 36.97083 N -6.23500 W

Resightings of this bird:

Date Site Observer(s)

3-4-2012 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Haije Valkema

5-6-2012 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde Haije Valkema

14-6-2012 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Rene Faber

11-10-2012 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

18-12-2012 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Jos Hooijmeijer

28-12-2012 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Rocío Marquez Ferrando Jorge Gutiérrez

19-3-2013 Abbega, Hemdijk 53.01667 N 5.56667 E The Netherlands Jouke van der Meulen

20-3-2013 Abbega, Hemdijk 53.01667 N 5.56667 E The Netherlands Jouke van der Meulen

20-3-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Ysbrand Galama

20-3-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Marta Lomas Vega

11-6-2013 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde Marycha Franken

22-6-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

20-1-2017 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

vrijdag 7 september 2018 Page 64 5-9-2018 Tobor 12.6597 N -16.26313 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 65 Name Ringer: Manolo Vazquez Colourcode: L1YLRL Name 2nd Ringer: Ringnr: 4131880 Ringing Date: 25-7-2012 Ringing site: Isla Mayor, Veta la Palma Age (in days; 50 = juv.; 99 = ad.): 99 Spain 36.97083 N -6.23500 W

Resightings of this bird:

Date Site Observer(s)

4-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

5-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

13-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

13-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

6-5-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Guus van Duin

4-6-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Rene Faber

8-6-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

14-6-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

28-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

3-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

9-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner Mo Verhoeven

19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

17-3-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

vrijdag 7 september 2018 Page 66 13-5-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

5-6-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Guus van Duin

7-6-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Frank van Groen

11-6-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Guus van Duin

8-4-2016 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

3-2-2018 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer Libbe Zijlstra

24-3-2018 Durgerdam, Kinselmeer (birdhide) 52.38306 N 5.00528 E The Netherlands Sander Hietkamp

24-3-2018 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Els Oostenbrink

15-4-2018 Zuiderwoude, Aandammergouw 52.426 N 5.032 E The Netherlands Roely Bos

15-4-2018 Durgerdam, Kinselmeer (birdhide) 52.38306 N 5.00528 E The Netherlands Martijn van Schie

15-4-2018 Durgerdam, Kinselmeer (birdhide) 52.38306 N 5.00528 E The Netherlands Roely Bos

25-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 67 Name Ringer: Pedro Lourenço Colourcode: L1YRBR Name 2nd Ringer: Rosemarie Kentie Ringnr: J013227 Ringing Date: 22-2-2009 Ringing site: Samora Correia, Samora Correia ricefields Age (in days; 50 = juv.; 99 = ad.): 99 Portugal 38.94194 N -8.88528 W

Resightings of this bird:

Date Site Observer(s)

5-4-2009 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Frank Visbeen Bozenmeertje

13-4-2009 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Frank Visbeen Bozenmeertje

23-2-2010 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Ysbrand Galama

24-4-2010 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Maarten Hotting Bozenmeertje

27-4-2010 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

9-5-2010 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Frank Visbeen Bozenmeertje

9-6-2010 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Frank Visbeen Bozenmeertje

22-6-2010 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Frank Visbeen Rene Faber Jan van der Geld

1-6-2011 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

4-6-2011 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

26-2-2012 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Dirk Tanger

26-2-2012 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Rene Faber

3-3-2012 Jisp 52.50750 N 4.87167 E The Netherlands Kees de Jager

vrijdag 7 september 2018 Page 68 5-3-2012 Jisp 52.50750 N 4.87167 E The Netherlands Kees de Jager

22-3-2012 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Jelle Abma Bozenmeertje

30-3-2012 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Barbara Lindenhovius Bozenmeertje Louis Boersma

13-4-2012 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

17-4-2012 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Jelle Abma Bozenmeertje

27-4-2012 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

9-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

22-3-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Jelle Abma Bozenmeertje

22-3-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Rene Faber Bozenmeertje

29-3-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

30-3-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Rene Faber Bozenmeertje

1-4-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Jelle Abma Bozenmeertje

7-4-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Jonathan Ross Bozenmeertje

30-4-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

22-5-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

26-5-2013 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

vrijdag 7 september 2018 Page 69 13-6-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Rene Faber

18-6-2013 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

8-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

11-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

1-4-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

4-4-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Lyda Kanters Bozenmeertje

21-4-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

22-4-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

28-4-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

4-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

12-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

17-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

20-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

21-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

29-5-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands A. van Overveld Bozenmeertje

3-6-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

vrijdag 7 september 2018 Page 70 6-6-2014 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

16-3-2015 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

17-3-2015 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Willem van der Waal Bozenmeertje

23-3-2015 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Monica Wolters Bozenmeertje

25-3-2015 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

10-4-2015 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

12-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

10-3-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Alberto Pastoriza

29-3-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Marianne Slot Bozenmeertje

1-4-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

8-4-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

15-4-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

23-4-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

4-5-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

25-5-2016 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Wim Tijsen Bozenmeertje

30-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

vrijdag 7 september 2018 Page 71 30-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

16-3-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Marieke Schous Bozenmeertje

20-3-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

22-3-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Marianne Slot Bozenmeertje

27-3-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

5-4-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

12-4-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

19-4-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

26-4-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Maarten Hotting Bozenmeertje

27-4-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

4-5-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

1-6-2017 Zuiderwoude, Kerk Ae, Arken Ae, 52.43000 N 5.03139 E The Netherlands Ab Kalkman Bozenmeertje

8-4-2018 Zuiderwoude, Aandammergouw 52.426 N 5.032 E The Netherlands René Beekvelt

15-4-2018 Zuiderwoude, Aandammergouw 52.426 N 5.032 E The Netherlands Evelien Kobus

vrijdag 7 september 2018 Page 72 3-5-2018 Zuiderwoude, Aandammergouw 52.426 N 5.032 E The Netherlands Steven Wytema

18-5-2018 Zuiderwoude, Aandammergouw 52.426 N 5.032 E The Netherlands Adrie Streefland

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 73 Name Ringer: Pedro Lourenço Colourcode: L1YRLR Name 2nd Ringer: Rosemarie Kentie Ringnr: J013217 Ringing Date: 22-2-2009 Ringing site: Samora Correia, Samora Correia ricefields Age (in days; 50 = juv.; 99 = ad.): 99 Portugal 38.94194 N -8.88528 W

Resightings of this bird:

Date Site Observer(s)

27-4-2010 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Manfred Lindemann

4-7-2010 Wallsbüll, Beltringharderkoog 54.566287 N 8.912908 E Germany Olaf Ekelöf

8-3-2011 L'Ile d'Olonne, Réserve de Chanteloup 46.55000 N -1.78333 W France Michel Fouquet

30-3-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Olaf Ekelöf

14-4-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Holger Bruns

17-4-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Olaf Ekelöf

21-4-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Dominic Cimiotti

30-4-2011 Meldorf, Dithmarscher und Meldorfer 54.11167 N 8.94694 E Germany Victor Corman Speicherkoog

6-5-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Eleonore Gothe

6-5-2011 Kating, Katinger Watt 54.28389 N 8.84417 E Germany Olaf Ekelöf

20-6-2011 Schlüttsiel, Hauke-Haien-Koog 54.66861 N 8.78028 E Germany Olaf Ekelöf

1-7-2011 Schlüttsiel, Hauke-Haien-Koog 54.66861 N 8.78028 E Germany Olaf Ekelöf

3-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

vrijdag 7 september 2018 Page 74 15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

27-5-2015 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Marten Schmitz

4-6-2016 Aldeboarn, Veenpolder 53.0436932 N 5.9189162 The Netherlands Jouke Altenburg

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 75 Name Ringer: University of Groningen Colourcode: L3LLLL Name 2nd Ringer: Ysbrand Galama Ringnr: 2503053 Ringing Date: 19-3-2014 Ringing site: Workum, Polder de Beveiliging Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99111 N 5.44694 E

Resightings of this bird:

Date Site Observer(s)

22-4-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rosemarie Kentie

22-11-2014 Unche 12.01028 N -15.61444 W Guinea Bissau Jos Hooijmeijer Haije Valkema Jan van der Kamp

23-11-2014 Unche 12.01028 N -15.61444 W Guinea Bissau Jan van der Kamp Jos Hooijmeijer Haije Valkema

27-11-2014 Pache, Iala 12.035 N -15.641 W Guinea Bissau Haije Valkema Jos Hooijmeijer Jan van der Kamp

20-2-2015 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

21-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

20-3-2015 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

1-5-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

13-4-2016 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Sofia Briosa e Scheltinga Atser Sybrandy (RUG)

10-6-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

10-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

11-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

vrijdag 7 september 2018 Page 76 12-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

12-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

25-3-2017 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Alice McBride

3-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

15-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

21-4-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 77 Name Ringer: University of Groningen Colourcode: L3RRLY Name 2nd Ringer: Ysbrand Galama Ringnr: 2503066 Ringing Date: 19-3-2014 Ringing site: Workum, Polder de Beveiliging Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99111 N 5.44694 E

Resightings of this bird:

Date Site Observer(s)

15-4-2014 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

14-6-2014 Le Teich, Réserve Ornithologique du Teich 44.65000 N -1.03333 W France Claude Feigné

20-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rene Faber (RUG)

23-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Arjan Hell

20-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

23-3-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Haije Valkema

14-6-2015 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde Mo Verhoeven

23-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

30-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama

1-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama Mo Verhoeven

3-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama

24-8-2015 Fintiok 12.655 N -16.113 W Senegal Haije Valkema Jos Hooijmeijer

3-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

vrijdag 7 september 2018 Page 78 3-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

4-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

4-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

31-3-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

12-6-2016 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

29-8-2016 Fintiok 12.655 N -16.113 W Senegal Idrissa Ndiaye Khady Gueye

28-3-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

25-4-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde Tim van der Meer

18-6-2017 Harich, Trophorne 52.93889 N 5.57222 E The Netherlands Egbert van der Velde Tim van der Meer

6-4-2018 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 79 Name Ringer: Jorge Gutiérrez Colourcode: L3YBRR Name 2nd Ringer: Ysbrand Galama Ringnr: 2505167 Ringing Date: 25-6-2013 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 35 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

11-7-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Ysbrand Galama

6-4-2015 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Jelle Loonstra

14-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Wiebe Kaspersma

30-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama

1-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama Mo Verhoeven

25-3-2016 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Marycha Franken West

2-6-2016 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

14-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

14-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

14-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Wim Tijsen

14-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

vrijdag 7 september 2018 Page 80 16-2-2017 Vila Franca de Xira, Giganta ricefields 38.938 N -8.968 W Portugal Jan Vegelin

18-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

12-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

1-6-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

8-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

22-2-2018 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Wim Tijsen

23-2-2018 Porto Alto, Toneca 38.95361 N -8.93639 W Portugal Siebe Bonthuis

23-2-2018 Porto Alto, Toneca 38.95361 N -8.93639 W Portugal Wim Tijsen

12-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

7-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

15-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

17-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

17-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

vrijdag 7 september 2018 Page 81 18-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma Mo Verhoeven

19-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

19-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

28-8-2018 Koubanao 12.65385 N -16.09191 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 82 Name Ringer: Mo Verhoeven Colourcode: L3YRLL Name 2nd Ringer: Ringnr: 2503114 Ringing Date: 27-3-2013 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

11-4-2013 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Jorge Gutiérrez Berber de Jong

21-4-2013 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

5-6-2013 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

21-6-2013 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rene Faber

27-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

1-7-2013 Abbega, Hissedijk 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Haije Valkema

5-7-2013 Tjerkwerd, Hemdijk 53.02972 N 5.51944 E The Netherlands Egbert van der Velde

15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

17-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

18-7-2014 Piaam, Kooiwaard 53.03111 N 5.40028 E The Netherlands Jos Hooijmeijer

7-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 83 8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

13-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

13-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

14-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

18-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

22-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

22-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

25-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

29-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jelle Loonstra

vrijdag 7 september 2018 Page 84 8-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Haije Valkema

9-7-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

6-2-2016 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

8-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

18-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

18-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

21-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

21-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

22-3-2016 Westervoort, Hondsbroekse Pleij 51.95000 N 5.95000 E The Netherlands Roy Verhoef

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

6-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

8-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

9-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

9-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

vrijdag 7 september 2018 Page 85 14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

15-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

15-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Jan Kramer Rennie Kramer

30-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

15-6-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 86 Name Ringer: Frank Majoor Colourcode: R3BBLB Name 2nd Ringer: Ringnr: 2502096 Ringing Date: 19-5-2013 Ringing site: Bemmel, Lingewal, Geranium Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.91833 N 5.90028 E

Resightings of this bird:

Date Site Observer(s)

18-12-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

19-12-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

20-12-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

3-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

4-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

7-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

13-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

15-3-2014 Huissen, Lingewal 51.91861 N 5.90472 E The Netherlands Frank Majoor

13-4-2014 Huissen, Lingewal 51.91861 N 5.90472 E The Netherlands Frank Majoor

1-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

3-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

4-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Jelle Loonstra Alice McBride

vrijdag 7 september 2018 Page 87 19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner Mo Verhoeven

2-6-2015 Saint Denis du Payré 46.40000 N -1.25000 W France Paul Trotignon

10-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie Haije Valkema

11-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Haije Valkema

10-3-2016 Westervoort, IJsselbrug 51.9675 N 5.96083333333 The Netherlands Jurgen Rotteveel

11-3-2016 Westervoort, IJsselbrug 51.9675 N 5.96083333333 The Netherlands Maarten Hageman

12-3-2016 Westervoort, IJsselbrug 51.9675 N 5.96083333333 The Netherlands Bob Coenen

12-3-2016 Westervoort, IJsselbrug 51.9675 N 5.96083333333 The Netherlands Roy Verhoef

16-3-2016 Huissen, Lingeplasjes Karbrug 51.907 N 5.919 E The Netherlands Peter Brouwer

21-6-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

7-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

1-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

6-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

15-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 88 5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 89 Name Ringer: Siebe Bonthuis Colourcode: R3RRYL Name 2nd Ringer: Marc van Leeuwen Ringnr: 2502522 Ringing Date: 28-4-2016 Ringing site: Houten, Polder De Hoon Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.019 N 5.147 E

Resightings of this bird:

Date Site Observer(s)

12-5-2016 Houten, De Meerpaal 52.01975 N 5.15799 E The Netherlands Mario Huizinga

31-5-2016 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

1-6-2016 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

5-6-2016 Polsbroekerdam - Noordelijk Benedeneind 52.014 N 4.939 E The Netherlands Bas Spée

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

13-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Wim Tijsen

28-2-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

1-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

4-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

6-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

7-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

8-3-2017 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Mario Huizinga

vrijdag 7 september 2018 Page 90 12-3-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

13-3-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

15-3-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

26-3-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

1-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

9-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

9-4-2017 Houten 52.03333 N 5.16667 E The Netherlands Marc van Leeuwen

11-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

16-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

19-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

20-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

21-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

22-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

23-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

26-4-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

7-5-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

vrijdag 7 september 2018 Page 91 14-5-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

26-5-2017 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

22-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

26-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

9-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

12-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Tom van Kerkhoff

19-3-2018 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

19-3-2018 Houten, De Meerpaal 52.01975 N 5.15799 E The Netherlands Herman Bouman

19-3-2018 Houten, De Meerpaal 52.01975 N 5.15799 E The Netherlands Marc van Leeuwen

20-3-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

25-3-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

29-3-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

31-3-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

1-4-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

6-4-2018 Houten, Polder De Hoon 52.019 N 5.147 E The Netherlands Siebe Bonthuis

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 92 Name Ringer: Wim Tijsen Colourcode: R4YLLB Name 2nd Ringer: Joop Hotting Ringnr: 3708105 Ringing Date: 20-5-2011 Ringing site: Hobrede, Polder Zeevang Age (in days; 50 = juv.; 99 = ad.): 10 The Netherlands 52.54972 N 4.97778 E

Resightings of this bird:

Date Site Observer(s)

2-4-2015 Schellinkhout, De Nek 52.621 N 5.128 E The Netherlands Ted van der Knaap

24-8-2015 Koubanao 12.65385 N -16.09191 W Senegal Khady Gueye Idrissa Ndiaye

9-12-2015 Pache, Iala 12.035 N -15.641 W Guinea Bissau José Alves

21-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

21-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

30-8-2016 Koubanao 12.65385 N -16.09191 W Senegal Idrissa Ndiaye Khady Gueye

8-9-2016 Fanda 12.59001 N -16.12186 W Senegal Idrissa Ndiaye Khady Gueye

9-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

9-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

11-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

19-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

3-2-2018 Isla Mayor, Veta la Palma South 36.9361959 N -6.237264 Spain Jos Hooijmeijer Libbe Zijlstra

10-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

vrijdag 7 september 2018 Page 93 11-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Astrid Kant Ronald Messemaker

15-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Astrid Kant Ronald Messemaker

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

23-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

23-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

26-5-2018 Warder, polder De Zeevang 52.55667 N 5.02750 E The Netherlands Jurgen Rotteveel

1-6-2018 Middelie, Polder de Zeevang 52.55083 N 4.99389 E The Netherlands Wim Tijsen

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 94 Name Ringer: Maarten Hotting Colourcode: R4YRYL Name 2nd Ringer: Wim Tijsen Ringnr: 3708108 Ringing Date: 3-6-2011 Ringing site: Hobrede, Polder Zeevang Age (in days; 50 = juv.; 99 = ad.): 14 The Netherlands 52.54972 N 4.97778 E

Resightings of this bird:

Date Site Observer(s)

5-7-2011 Warder, polder De Zeevang 52.55667 N 5.02750 E The Netherlands Wim Tijsen

12-8-2011 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Jouke van der Meulen

18-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

18-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Mario Huizinga Erva

18-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

14-3-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

16-3-2018 Uitgeest, Uitgeesterbroekpolder 52.52222 N 4.74000 E The Netherlands Kees de Jager

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 95 Name Ringer: Astrid Kant Colourcode: R5BBAA Name 2nd Ringer: Ringnr: BBAA Ringing Date: 1-1-2004 Ringing site: Unknown Age (in days; 50 = juv.; 99 = ad.): 99

Resightings of this bird:

Date Site Observer(s)

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 96 Name Ringer: Astrid Kant Colourcode: R5BLLB Name 2nd Ringer: Ringnr: 2502636 Ringing Date: 8-6-2013 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 22 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

22-6-2013 Lexmond, Achthoven, Lekuiterwaard 51.96750 N 5.01472 E The Netherlands Astrid Kant

1-7-2013 Lexmond, Achthoven, Lekuiterwaard 51.96750 N 5.01472 E The Netherlands Astrid Kant Jan van der Winden

2-7-2013 Lexmond, Achthoven, Lekuiterwaard 51.96750 N 5.01472 E The Netherlands Astrid Kant

7-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

3-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

4-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 97 Name Ringer: Astrid Kant Colourcode: R5LBYB Name 2nd Ringer: Ringnr: 2502559 Ringing Date: 15-5-2012 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

15-5-2012 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

22-3-2013 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

27-4-2013 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

27-5-2013 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

27-5-2013 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

22-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pete Potts Erva Anne de Potier

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

23-3-2014 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

30-3-2014 Meerkerk, put van zessen langs A27 51.90944 N 4.98056 E The Netherlands Astrid Kant

Ronald Messemaker

23-4-2014 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

20-5-2014 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 98 18-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

21-2-2015 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

21-2-2015 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Haije Valkema

12-3-2015 Meerkerk, put van zessen langs A27 51.90944 N 4.98056 E The Netherlands Ron Alblas

6-4-2015 Lexmond, Polder Lakerveld 51.941 N 5.018 E The Netherlands Mario Huizinga

6-4-2015 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest Ronald Messemaker

25-5-2015 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

25-5-2015 Lexmond, Polder Lakerveld 51.941 N 5.018 E The Netherlands Mario Huizinga

20-8-2015 Dianki 12.87500 N -16.46278 W Senegal Jos Hooijmeijer Haije Valkema Khady Gueye

21-8-2015 Dianki 12.87500 N -16.46278 W Senegal Haije Valkema Idrissa Ndiaye Khady Gueye

25-3-2016 Kedichem, Lingeuiterwaard The Netherlands Astrid Kant Ronald Messemaker

27-3-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

31-3-2016 Meerkerk, Zouweboezem 51.92694 N 5.00056 E The Netherlands Mario Huizinga

12-5-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

28-5-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

2-9-2016 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Khady Gueye

vrijdag 7 september 2018 Page 99 2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

17-3-2017 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

24-4-2017 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

16-6-2017 Lith, Lage Velden 51.781 N 5.447 E The Netherlands Gerard van de Wouw

6-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Kees de Jager

9-2-2018 Vila Franca de Xira, Giganta ricefields 38.938 N -8.968 W Portugal Egbert van der Velde

9-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

16-3-2018 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

27-8-2018 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 100 Name Ringer: Astrid Kant Colourcode: R5RLBL Name 2nd Ringer: Ronald Messemaker Ringnr: 2502596 Ringing Date: 10-5-2013 Ringing site: Vianen, Polder Vijfheerenlanden Noordwest Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.95611 N 5.10583 E

Resightings of this bird:

Date Site Observer(s)

3-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

5-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

22-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pete Potts Erva Anne de Potier

15-3-2014 Everdingen, Lek forelands 51.96639 N 5.16778 E The Netherlands Jouke Altenburg

30-3-2014 Acquoy, wetland Lappenheide 51.88333 N 5.13333 E The Netherlands Jouke Altenburg

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

14-3-2015 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

1-6-2015 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

2-6-2015 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

11-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

17-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

9-4-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

7-5-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest

vrijdag 7 september 2018 Page 101 2-6-2016 Vianen, Polder Vijfheerenlanden 51.95611 N 5.10583 E The Netherlands Astrid Kant Noordwest Ronald Messemaker

4-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Jos Hooijmeijer Erva

13-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

5-3-2017 Meerkerk, put van zessen langs A27 51.90944 N 4.98056 E The Netherlands Tom van Kerkhoff

2-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

4-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Maarten Hotting

7-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

14-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 102 Name Ringer: Willem Brandhorst Colourcode: R5YLBB Name 2nd Ringer: Ringnr: 2502662 Ringing Date: 15-5-2013 Ringing site: Berkel en Rodenrijs, Bergboezem Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 51.98139 N 4.43639 E

Resightings of this bird:

Date Site Observer(s)

29-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner

29-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride

3-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Nathan Senner Alice McBride

3-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Nathan Senner Alice McBride

8-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner

11-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride

12-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner

21-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride

22-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven

29-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven Alice McBride

2-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

9-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie

15-2-2016 Yelbes 38.96944 N -6.00167 W Spain Haije Valkema

vrijdag 7 september 2018 Page 103 19-3-2016 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Willem Brandhorst

2-9-2016 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Khady Gueye

4-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde Wiebe Kaspersma

5-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

7-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

7-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

9-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

9-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Jos Hooijmeijer

9-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

9-2-2017 Hernan Cortes - Medellín 39.006 N -5.943 W Spain Jos Hooijmeijer

10-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

2-3-2017 Sint-Margriete 51.25000 N 3.53333 E Belgium Walter Hamelinck

11-3-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Willem Brandhorst

19-3-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Jeroen Bes

22-3-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Jan Vegelin

24-3-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Jan Vegelin

vrijdag 7 september 2018 Page 104 17-4-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Susanne Kuijpers

13-5-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Willem Brandhorst

29-5-2017 Berkel en Rodenrijs, Bergboezem 51.98139 N 4.43639 E The Netherlands Willem Brandhorst

16-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jacob de Vries

16-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Mario Huizinga

27-8-2018 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 105 Name Ringer: Allix Brenninkmeijer Colourcode: R6YYLL Name 2nd Ringer: Andrea Kuiper-Vos Ringnr: 3611919 Ringing Date: 12-5-2009 Ringing site: Deinum, Polder Deinum Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.18333 N 5.73333 E

Resightings of this bird:

Date Site Observer(s)

20-5-2009 Deinum, Polder Deinum (Visser) 53.19278 N 5.74278 E The Netherlands Yde van der Heide

31-5-2009 Deinum, Polder Deinum (Visser) 53.19278 N 5.74278 E The Netherlands Yde van der Heide

15-2-2010 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Ysbrand Galama

16-2-2010 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Job ten Horn

20-2-2010 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Job ten Horn

21-2-2010 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Job ten Horn

7-4-2010 Deinum, Polder Deinum (Visser) 53.19278 N 5.74278 E The Netherlands Leonie Raijmakers

16-4-2010 Deinum, Polder Deinum (Visser) 53.19278 N 5.74278 E The Netherlands Leonie Raijmakers

27-4-2010 Deinum, Polder Deinum (Visser) 53.19278 N 5.74278 E The Netherlands Marten Sikkema Leonie Raijmakers

27-4-2010 Ritsumazijl, Ritsumazijl Noord 53.20444 N 5.74167 E The Netherlands Marten Sikkema Leonie Raijmakers

22-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Petra de Goeij

22-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Anneke Rippen

23-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Theunis Piersma

vrijdag 7 september 2018 Page 106 24-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Petra de Goeij

4-2-2011 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Niko Groen Erva Jan van der Geld

18-2-2011 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Stef Waasdorp Erva

6-6-2011 Blessum 53.20000 N 5.70000 E The Netherlands Anneke Zeinstra

8-7-2011 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Theunis Piersma

8-7-2011 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Ysbrand Galama

14-2-2012 Zambujal 38.57306 N -8.73472 W Portugal Gjerryt Hoekstra

14-2-2012 Zambujal 38.57306 N -8.73472 W Portugal Haije Valkema

12-4-2012 Ritsumazijl, Ritsumazijl Noord 53.20444 N 5.74167 E The Netherlands Hendriekus Algra

1-6-2012 Blessum 53.20000 N 5.70000 E The Netherlands Anneke Zeinstra

7-6-2012 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde Haije Valkema

4-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

5-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

13-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

17-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

17-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

vrijdag 7 september 2018 Page 107 20-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rene Faber Erva

3-4-2013 Leidschendam, Starrevaart 52.10000 N 4.43333 E The Netherlands Sjaak Schilperoort

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

25-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

24-11-2014 Blom 11.99556 N -15.79361 W Guinea Bissau Jos Hooijmeijer Jan van der Kamp Haije Valkema

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

19-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

19-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

19-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

24-8-2015 Fintiok 12.655 N -16.113 W Senegal Haije Valkema Jos Hooijmeijer

9-12-2015 Blom 11.99556 N -15.79361 W Guinea Bissau Jos Hooijmeijer Haije Valkema Hamilton Monteiro

20-6-2016 Jeth 53.124 N 5.683 E The Netherlands Gjerryt Hoekstra Ysbrand Galama

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

31-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

vrijdag 7 september 2018 Page 108 2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

8-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Maarten Hotting Erva, East

8-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

13-7-2017 Lauwersoog - Achter de Zwarten 53.387650 N 6.199021 E The Netherlands Mo Verhoeven

4-9-2018 Agnack, Agnack ricefields 12.592 N -16.117 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 109 Name Ringer: University of Groningen Colourcode: Y1YRBR Name 2nd Ringer: Ringnr: 3554078 Ringing Date: 11-5-2004 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

1-6-2004 Makkum, Makkumer Zuidwaard 53.04472 N 5.38722 E The Netherlands Jos Hooijmeijer

1-6-2005 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jos Hooijmeijer Niko Groen (RUG)

10-8-2005 Isla Mayor, Entremuros (Parque Natural 37.08611 N -6.26028 W Spain José Luís Arroyo de Doñana)

10-4-2006 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Christiaan Both

9-6-2006 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Pedro Lourenço Elzemiek Geuverink

1-2-2007 Zambujal 38.57306 N -8.73472 W Portugal Pedro Lourenço Freek Mandema

2-2-2007 Zambujal 38.57306 N -8.73472 W Portugal Pedro Lourenço Freek Mandema Theunis Piersma

31-5-2007 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Rosemarie Kentie

5-6-2007 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Rosemarie Kentie Valentijn van den Brink

24-2-2008 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Pete Potts

28-3-2008 Parrega Oost, Dedgum, Hieslum 53.01361 N 5.48611 E The Netherlands Ysbrand Galama

3-3-2009 Aigues Mortes, La Tortue 43.55528 N 4.33611 E France Dirk Tanger Onno Steendam Rene Faber

22-3-2009 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rinkje van der Zee

vrijdag 7 september 2018 Page 110 3-6-2009 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama Lucie Schmaltz

2-7-2009 Palencia, Laguna de Boada de Campos 41.96667 N -4.85000 W Spain Carlos Zumalacárregui Martínez

3-7-2009 Palencia, Laguna de Boada de Campos 41.96667 N -4.85000 W Spain Carlos Zumalacárregui Martínez

24-3-2010 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Krijn Trimbos (RUG) Soal

9-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

25-3-2011 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Dirk Kuiken

6-4-2011 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Willem Stilma

25-3-2012 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Rinkje van der Zee

26-2-2013 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Rene Faber L'Albufera Marten Sikkema

26-2-2013 Les Gavines, Racó de l'Olla, Parque 39.33333 N -0.31667 W Spain Rene Faber Natural de L'Albufera Marten Sikkema

27-2-2013 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Marten Sikkema L'Albufera Rene Faber

12-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 111 Name Ringer: João Guilherme Colourcode: Y3LBYB Name 2nd Ringer: Robbie Watt Ringnr: 3652951 Ringing Date: 21-5-2008 Ringing site: Gaast, Jouke Sjoerdspolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.00361 N 5.41972 E

Resightings of this bird:

Date Site Observer(s)

12-6-2008 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Robbie Watt João Guilherme

17-6-2008 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

25-3-2009 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Pedro Lourenço

14-4-2009 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Pedro Lourenço

18-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

23-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

25-6-2009 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rinkje van der Zee

27-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

4-7-2009 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

19-2-2010 Palazuelo 39.11583 N -5.73778 W Spain Jos Hooijmeijer Libbe Zijlstra

24-5-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rosemarie Kentie

15-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rinkje van der Zee

17-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rene Faber Petra de Goeij Rinkje van der Zee

vrijdag 7 september 2018 Page 112 17-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rinkje van der Zee

17-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Petra de Goeij Rinkje van der Zee Rene Faber

17-6-2010 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Petra de Goeij Rinkje van der Zee Rene Faber

21-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

21-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

21-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Anneke Rippen

22-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Anneke Rippen

13-7-2010 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Willem Stilma

30-1-2011 Vivares 39.08333 N -5.88722 W Spain Jos Hooijmeijer Rocío Marquez Ferrando

18-2-2011 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Job ten Horn Erva

20-3-2011 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Theunis Piersma Soal Martin Bulla

22-6-2011 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

26-6-2011 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Rene Faber Frank Visbeen

27-6-2011 Saint Denis du Payré 46.40000 N -1.25000 W France Paul Trotignon

4-2-2012 Hernan Cortes 39.03333 N -5.93333 W Spain Niko Groen Gerrit Gerritsen

4-2-2012 Hernan Cortes 39.03333 N -5.93333 W Spain Niko Groen Gerrit Gerritsen

vrijdag 7 september 2018 Page 113 12-2-2012 Hernan Cortes 39.03333 N -5.93333 W Spain Jos Hooijmeijer Tom Jager

26-2-2012 Porto Alto, Ruivo 38.96667 N -8.90194 W Portugal Dirk Tanger

26-3-2012 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Sytse-Jan Wouda

3-5-2012 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rienk Jelle Hibma (RUG)

17-7-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jouke van der Meulen

14-3-2013 Woudsend, Indijk 52.95028 N 5.60722 E The Netherlands Gerrit Gerritsen

24-3-2013 Waverveen, Polder Groot-Mijdrecht Noord 52.23583 N 4.90472 E The Netherlands Frank van der Meer Robert van der Meer Peter van der Meer

26-5-2013 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Merlijn de Graaf

27-5-2013 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Merlijn de Graaf April Fikenscher

8-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

11-6-2013 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama Gjerryt Hoekstra

19-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Atser Sybrandy (RUG)

20-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Atser Sybrandy (RUG)

7-10-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Hendriekus Algra

30-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride

31-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

vrijdag 7 september 2018 Page 114 15-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride

25-3-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

17-4-2014 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Dolf van der Gaag

29-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven Alice McBride

31-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven Nathan Senner

1-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

2-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

4-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Jelle Loonstra Alice McBride

5-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

7-2-2015 Medellín 38.98861 N -5.96056 W Spain Mo Verhoeven Alice McBride Nathan Senner

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

18-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner Mo Verhoeven

19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

6-3-2015 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Anton Duijnhouwer Bullewijkerpolder, Landje van Geijsel

6-3-2015 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Frits Bos Bullewijkerpolder, Landje van Geijsel

vrijdag 7 september 2018 Page 115 16-3-2015 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

5-5-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Emma Penning

17-6-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Emma Penning

7-2-2016 Yelbes 38.96944 N -6.00167 W Spain Rosemarie Kentie

7-2-2016 Yelbes 38.96944 N -6.00167 W Spain Rosemarie Kentie

15-2-2016 Yelbes 38.96944 N -6.00167 W Spain Haije Valkema

23-3-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

30-5-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

16-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

4-2-2017 Casar de Miajadas 39.13333 N -5.85000 W Spain Egbert van der Velde Wiebe Kaspersma

7-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

12-3-2017 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Bert Zijlstra

25-3-2017 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Alice McBride

15-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Mo Verhoeven Alice McBride

vrijdag 7 september 2018 Page 116 17-6-2017 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Kees de Jager

5-2-2018 Almoharin 39.15000 N -6.03333 W Spain Pipe Abad

7-2-2018 Hernan Cortes - Medellín 39.006 N -5.943 W Spain Pipe Abad

10-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jos Hooijmeijer Libbe Zijlstra

12-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jacob de Vries

13-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jacob de Vries

17-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jacob de Vries

17-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Mario Huizinga

18-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Jacob de Vries

18-2-2018 Santa Amalia 39.00389 N -5.98611 W Spain Mario Huizinga

19-4-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

2-6-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 117 Name Ringer: Pedro Lourenço Colourcode: Y3LLYL Name 2nd Ringer: Feline Stellaard Ringnr: 1433320 Ringing Date: 20-5-2008 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 15 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

18-6-2008 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Freek Koopmans Hessel Klijn

26-5-2009 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Hacen Mohamed El Hacen Petra de Goeij

27-5-2009 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rosemarie Kentie Katharine Bowgen

3-6-2009 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama Lucie Schmaltz

4-5-2010 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Petra de Goeij Mo Verhoeven

17-5-2010 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Rosemarie Kentie

15-4-2011 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jos Hooijmeijer Marten Sikkema (RUG)

26-5-2011 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Rocío Marquez Ferrando Albert Allema (RUG)

23-1-2013 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Tom Jager

23-1-2013 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Rocío Marquez Ferrando

23-1-2013 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Jos Hooijmeijer

5-2-2013 Vivares 39.08333 N -5.88722 W Spain Nathan Senner Mo Verhoeven

9-4-2013 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

vrijdag 7 september 2018 Page 118 25-4-2013 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Berber de Jong

18-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

20-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Hendriekus Algra

19-5-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

15-6-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

23-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jelle Loonstra

27-6-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Rinkje van der Zee

16-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

25-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

25-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

28-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

16-5-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

14-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

18-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Sofia Briosa e Scheltinga

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jos Hooijmeijer

22-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

vrijdag 7 september 2018 Page 119 28-10-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Ysbrand Galama

8-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

17-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

10-4-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

7-2-2018 Isla Mayor, rice fields 37.13944 N -6.18944 W Spain Jan Kramer Rennie Kramer

7-4-2018 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

14-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 120 Name Ringer: Rinkje van der Zee Colourcode: Y3RBLL Name 2nd Ringer: Ringnr: 3654148 Ringing Date: 9-5-2009 Ringing site: Workum, Workumerbinnenwaard-Zuid Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.97917 N 5.41917 E

Resightings of this bird:

Date Site Observer(s)

10-6-2009 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Rosemarie Kentie

17-6-2009 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rosemarie Kentie

18-6-2009 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rosemarie Kentie

18-6-2009 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pedro Lourenço

25-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer

27-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

16-3-2010 Saint Denis du Payré 46.40000 N -1.25000 W France Paul Trotignon

20-4-2010 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

23-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Petra de Goeij

25-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

21-3-2011 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Lucie Schmaltz

20-4-2011 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

5-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

vrijdag 7 september 2018 Page 121 16-2-2016 Yelbes 38.96944 N -6.00167 W Spain Haije Valkema

7-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Siebe (RUG) Bonthuis

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 122 Name Ringer: Jos Hooijmeijer Colourcode: Y3RLBL Name 2nd Ringer: Ringnr: 1434110 Ringing Date: 14-5-2010 Ringing site: Workum, Workumerbuitenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 10 The Netherlands 52.99222 N 5.40167 E

Resightings of this bird:

Date Site Observer(s)

6-4-2011 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jos Hooijmeijer Ysbrand Galama

20-4-2011 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

30-6-2011 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

6-7-2011 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Rene Faber

11-7-2011 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

16-3-2012 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

18-3-2012 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Raf Vervoort

15-6-2012 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Ysbrand Galama

22-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rienk Jelle Hibma (RUG)

27-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rienk Jelle Hibma (RUG)

12-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

12-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

13-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

vrijdag 7 september 2018 Page 123 13-4-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Maarten Hotting Rene Faber

4-5-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

8-6-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

5-7-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Egbert van der Velde

9-7-2013 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Jos Hooijmeijer Sietske Rintjema Chris Bakker

2-8-2013 Lelystad, Oostvaardersplassen, kijkhut De 52.44722 N 5.39917 E The Netherlands Gerrit Gerritsen Zeearend en Wigbels' Eiland

6-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer Tom Jager

28-3-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

23-5-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Dolf van der Gaag

8-6-2014 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Jan Kramer

11-7-2014 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Jelle Loonstra

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

26-3-2015 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Ysbrand Galama

13-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

12-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

vrijdag 7 september 2018 Page 124 12-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Astrid Kant Erva

29-3-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

29-5-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

12-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

19-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

20-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Mario Huizinga Erva

17-3-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

4-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Mario Huizinga

4-4-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jan Kramer Eelco Brandenburg

13-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Mo Verhoeven Alice McBride

8-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

8-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Kees de Jager

31-3-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride Mo Verhoeven

5-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

25-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 125 Name Ringer: Pedro Lourenço Colourcode: Y3YBRY Name 2nd Ringer: Merlijn de Graaf Ringnr: 3654108 Ringing Date: 5-6-2007 Ringing site: Workum, Workumerbinnenwaard-Noord Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99611 N 5.41139 E

Resightings of this bird:

Date Site Observer(s)

13-6-2007 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie Valentijn van den Brink

13-3-2008 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Petra de Goeij Ysbrand Galama

24-3-2008 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Theunis Piersma

10-6-2008 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Pedro Lourenço

23-3-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

27-3-2009 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Marianne McGhie

15-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Niko Groen (RUG)

19-6-2009 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer

17-3-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Anneke Rippen

1-4-2010 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Carola Poley Anneke Rippen

15-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Anneke Rippen

16-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Petra de Goeij

20-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Lucie Schmaltz

vrijdag 7 september 2018 Page 126 25-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rosemarie Kentie

25-6-2010 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

29-3-2011 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Niko Groen (RUG)

17-6-2011 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Theunis Piersma

23-3-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Haije Valkema Egbert van der Velde

27-5-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

7-6-2012 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde Haije Valkema

20-3-2013 Nijhuizum, Monnikeburenpolder Zuid 52.98611 N 5.48861 E The Netherlands Ysbrand Galama

9-4-2013 Nijhuizum, Monnikeburenpolder Zuid 52.98611 N 5.48861 E The Netherlands Jouke van der Meulen

8-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

19-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

21-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

22-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

27-3-2014 Workum, Polder de Beveiliging 52.99111 N 5.44694 E The Netherlands Rene Faber (RUG)

5-6-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Dolf van der Gaag

15-4-2015 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Atser Sybrandy (RUG)

vrijdag 7 september 2018 Page 127 18-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

19-4-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jan Kramer Eric ten Cate

22-6-2016 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Sofia Briosa e Scheltinga

23-6-2016 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Sofia Briosa e Scheltinga

23-6-2016 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Sofia Briosa e Scheltinga

25-6-2016 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

26-6-2016 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Guillaume Senterre

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 128 Name Ringer: Pedro Lourenço Colourcode: Y3YYLL Name 2nd Ringer: João Guilherme Ringnr: 3652904 Ringing Date: 9-5-2008 Ringing site: Gaast, Jouke Sjoerdspolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.00361 N 5.41972 E

Resightings of this bird:

Date Site Observer(s)

20-2-2008 Samora Correia, Samora Correia ricefields 38.94194 N -8.88528 W Portugal Tim Walker

8-6-2008 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands João Guilherme Robbie Watt

24-3-2009 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Pedro Lourenço

9-4-2009 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Anneke Zeinstra

9-5-2009 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Theunis Piersma

4-6-2009 Ferwoude, Fallingabuurster- en 53.00639 N 5.44611 E The Netherlands Katharine Bowgen Aaltjemeerpolder Pedro Lourenço

13-6-2009 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Minnema

19-6-2009 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

15-3-2010 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

15-6-2010 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Anneke Rippen

13-2-2011 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Dirk Tanger

26-5-2011 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jos Hooijmeijer

12-3-2012 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Haije Valkema

vrijdag 7 september 2018 Page 129 26-3-2012 Workum, Workumerbuitenwaard-Noord 52.99222 N 5.40167 E The Netherlands Rienk Jelle Hibma (RUG)

19-5-2012 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jan Kramer

15-6-2012 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Rienk Jelle Hibma (RUG)

18-6-2012 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Rienk Jelle Hibma (RUG)

6-4-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Minnema

7-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Sietse Bernardus

11-4-2013 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Merlijn de Graaf Jos Hooijmeijer

13-4-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Minnema

13-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Maarten Hotting Rene Faber

14-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Rene Faber

15-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands April Fikenscher

15-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Merlijn de Graaf

16-4-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Minnema

19-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Merlijn de Graaf

22-4-2013 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jos Hooijmeijer

25-4-2013 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Merlijn de Graaf

vrijdag 7 september 2018 Page 130 19-3-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

15-4-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

3-4-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Emma Penning

7-4-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jan Kramer

5-5-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

24-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

26-1-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

1-4-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Ysbrand Galama Guillaume Senterre

11-6-2016 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Guillaume Senterre

5-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

20-3-2017 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Age Hulder

28-4-2017 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Age Hulder

9-11-2017 Guembeul, Réserve Spéciale de Faune de 15.929 N -16.463 W Senegal Jos Hooijmeijer Guembeul Tom Jager Pope Yamar Niang

27-3-2018 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Riemer Miedema

9-6-2018 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Tim Oortwijn

16-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride Mo Verhoeven

vrijdag 7 september 2018 Page 131 30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 132 Name Ringer: Theunis Piersma Colourcode: Y4BLBY Name 2nd Ringer: Ringnr: 3659751 Ringing Date: 15-5-2010 Ringing site: Exmorra, Parregaastermeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.03194 N 5.45361 E

Resightings of this bird:

Date Site Observer(s)

3-6-2010 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Petra de Goeij

20-1-2011 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

9-4-2011 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Petra de Goeij

8-3-2012 Oudega, Sypset 53.00028 N 5.53556 E The Netherlands Jouke van der Meulen

10-3-2012 Parrega Oost, Dedgum, Hieslum 53.01361 N 5.48611 E The Netherlands Haije Valkema

3-2-2013 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Nathan Senner

25-3-2013 Idzegahuizum, Polder Kooihuizen-Noord 53.04667 N 5.41806 E The Netherlands Dirk Kuiken

27-3-2013 Idzegahuizum, Polder Kooihuizen-Noord 53.04667 N 5.41806 E The Netherlands Merlijn de Graaf

2-4-2013 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Merlijn de Graaf

24-4-2013 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Atser Sybrandy (RUG)

27-6-2013 Parrega, Ritseburen 53.01722 N 5.47333 E The Netherlands Jorge Gutiérrez

27-6-2013 Parrega, Ritseburen 53.01722 N 5.47333 E The Netherlands Merlijn de Graaf

4-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

vrijdag 7 september 2018 Page 133 6-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

7-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

12-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

17-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

18-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

15-4-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

10-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

13-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

13-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

24-4-2015 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Atser Sybrandy (RUG) Teade de Boer

24-5-2015 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Emma Penning

6-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie

10-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie Haije Valkema

10-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Haije Valkema

vrijdag 7 september 2018 Page 134 11-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie Haije Valkema

11-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Haije Valkema

21-2-2016 Medellín 38.98861 N -5.96056 W Spain Fernando Yuste

24-3-2016 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Guillaume Senterre Sofia Briosa e Scheltinga

4-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre Mélodie Tort

29-1-2017 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Drew Bingrun

14-2-2017 Valdehornillos 39.05028 N -5.97583 W Spain Jan Vegelin

30-3-2017 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Age Hulder

4-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jelle Loonstra

22-3-2018 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Henri Zomer

4-6-2018 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Tim Oortwijn

30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 135 Name Ringer: Rosemarie Kentie Colourcode: Y4LLRB Name 2nd Ringer: Allert Bijleveld Ringnr: 1433186 Ringing Date: 25-5-2008 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 11 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

2-4-2010 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rosemarie Kentie

9-4-2010 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Carola Poley

15-6-2010 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rosemarie Kentie Brett Sandercock

21-6-2010 Durgerdam, IJdoornpolder 52.37944 N 5.01028 E The Netherlands Rene Faber

13-2-2011 Porto Alto, Ze do Pinho 38.96222 N -8.89167 W Portugal Rene Faber

17-3-2011 Molkwerum, Noorderpolder 52.91139 N 5.41778 E The Netherlands Sam Jones

16-6-2012 Nijhuizum, Monnikeburenpolder Zuid 52.98611 N 5.48861 E The Netherlands Jouke van der Meulen

18-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

23-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Marten Sikkema Erva

9-3-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Marta Lomas Vega Matt Slaymaker Teresa Montras

10-4-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

15-6-2013 Abbega, Rige, Polder It Marlân 53.03639 N 5.57306 E The Netherlands Atser Sybrandy (RUG)

12-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

vrijdag 7 september 2018 Page 136 13-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

15-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

14-6-2014 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde

19-6-2014 El Rocio, Marismas de El Rocío (Parque 37.12833 N -6.50528 W Spain Rubén Rodríguez Olivares Nacional de Doñana)

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

6-3-2015 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

9-3-2015 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

10-3-2015 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

16-3-2015 Molkwerum, De Flait 52.90111 N 5.41694 E The Netherlands Marycha Franken

12-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

1-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama Mo Verhoeven

2-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

vrijdag 7 september 2018 Page 137 22-3-2016 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Iris Bontekoe

8-6-2016 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

17-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Amandine Vallee

12-4-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Florian Landstra

26-5-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Anna Hatsagi

11-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

11-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

11-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

12-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

13-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

9-6-2018 Hindeloopen, Gellehuisterpolder 52.92972 N 5.42778 E The Netherlands Mo Verhoeven Jelle Loonstra

15-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

16-6-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Wiebe Kaspersma

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 138 Name Ringer: Petra de Goeij Colourcode: Y4LLRL Name 2nd Ringer: Lucie Schmaltz Ringnr: 1433442 Ringing Date: 19-5-2008 Ringing site: Koudum, Polder De Oosterling Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.93444 N 5.45778 E

Resightings of this bird:

Date Site Observer(s)

30-5-2008 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Rosemarie Kentie Petra de Goeij

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 139 Name Ringer: Rosemarie Kentie Colourcode: Y4LRYB Name 2nd Ringer: Allert Bijleveld Ringnr: 3654021 Ringing Date: 8-6-2008 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 18 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

15-6-2010 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gerard Minnema

20-4-2011 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Niko Groen (RUG)

10-10-2013 Sanlúcar de Barrameda, Salinas de 36.86667 N -6.33333 W Spain Hendriekus Algra Bonanza, Parque Natural de Doñana

30-9-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

2-5-2015 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Atser Sybrandy (RUG) Teade de Boer

16-11-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 140 Name Ringer: Ysbrand Galama Colourcode: Y4LYRB Name 2nd Ringer: Gjerryt Hoekstra Ringnr: 3659798 Ringing Date: 15-5-2011 Ringing site: It Heidenskip, Ursulapolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.95889 N 5.46667 E

Resightings of this bird:

Date Site Observer(s)

22-2-2012 Granho, Foros de Benfica, Paul da Casa 39.10639 N -8.64750 W Portugal Rene Faber do Cadaval Dirk Tanger

24-2-2012 Porto Alto, Ruivo 38.96667 N -8.90194 W Portugal Rene Faber

24-2-2012 Porto Alto, Ruivo 38.96667 N -8.90194 W Portugal Rene Faber

7-3-2012 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

7-3-2012 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Gjerryt Hoekstra

3-4-2012 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

20-4-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Niels Bot

20-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

21-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rinkje van der Zee

21-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rienk Jelle Hibma (RUG)

9-3-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

9-4-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

8-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 141 8-7-2013 't Zand 52.50111 N 4.74750 E The Netherlands Fred Visscher

10-7-2013 De Stolpen, polder Zijpe 52.81667 N 4.73333 E The Netherlands Wim Tijsen

16-7-2013 De Stolpen, polder Zijpe 52.81667 N 4.73333 E The Netherlands Wim Tijsen

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

1-4-2014 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

20-6-2014 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber (RUG)

23-6-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Jos Hooijmeijer

24-6-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber (RUG)

24-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber (RUG)

28-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Ysbrand Galama

30-6-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber (RUG)

1-7-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Jos Hooijmeijer

13-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

26-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

18-3-2015 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

15-4-2015 It Heidenskip, Workumerveld 52.97111 N 5.46972 E The Netherlands Ysbrand Galama

vrijdag 7 september 2018 Page 142 18-6-2015 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Marycha Franken

25-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

30-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama

1-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama Mo Verhoeven

3-7-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Ysbrand Galama

25-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Egbert van der Velde

21-3-2016 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama

3-6-2016 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

18-3-2017 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Jan Kramer Eus de Groot

22-3-2017 Workum, Workumerbuitenwaard-Zuid, It 52.98056 N 5.40778 E The Netherlands Alice McBride Soal

11-6-2017 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

23-6-2017 Kleine Gaastmeer, Kaappolder West 52.97444 N 5.50528 E The Netherlands Tim van der Meer

23-6-2017 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama

25-6-2017 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama Anna Hatsagi

22-7-2017 Wieringerwerf, Wieringermeer, 52.863 N 5.071 E The Netherlands Wim Tijsen Oosterkwelweg

23-7-2017 Wieringerwerf, Wieringermeer, 52.863 N 5.071 E The Netherlands Wim Tijsen Oosterkwelweg

vrijdag 7 september 2018 Page 143 22-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

2-5-2018 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 144 Name Ringer: Nathan Senner Colourcode: Y5BBLB Name 2nd Ringer: Mo Verhoeven Ringnr: 2504809 Ringing Date: 18-5-2013 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

13-6-2013 Molkwerum, Noorderpolder 52.91139 N 5.41778 E The Netherlands Jorge Gutiérrez

27-6-2013 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

3-7-2013 Blauwhuis, Jacobidyk 53.01667 N 5.53333 E The Netherlands Egbert van der Velde

15-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

6-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner Mo Verhoeven

23-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

26-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

23-3-2015 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Alice McBride West

13-6-2015 Gaast, Polder Kooihuizen-Zuid 53.02667 N 5.42667 E The Netherlands Emma Penning

24-8-2015 Koubanao 12.65385 N -16.09191 W Senegal Haije Valkema Jos Hooijmeijer

24-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Egbert van der Velde

15-3-2016 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Haije Valkema

25-3-2016 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Mario Huizinga

vrijdag 7 september 2018 Page 145 4-6-2016 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Sofia Briosa e Scheltinga

17-3-2017 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama

6-4-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Amandine Vallee

12-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra

4-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

11-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

19-6-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

25-6-2018 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride Mo Verhoeven

26-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jan Kramer Eelco Brandenburg

27-6-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

2-7-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

4-7-2018 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

vrijdag 7 september 2018 Page 146 5-7-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

28-8-2018 Koubanao 12.65385 N -16.09191 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 147 Name Ringer: Nathan Senner Colourcode: Y5BYLR Name 2nd Ringer: Ringnr: 2504844 Ringing Date: 18-5-2013 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

8-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner Mo Verhoeven

4-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

9-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

16-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

20-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Anneke Zeinstra

13-5-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Dirk Kuiken

21-2-2016 El Palmar, Tancat de Baldovi, Parque 39.31944 N -0.33472 W Spain Rene Faber Natural de L'Albufera

22-2-2016 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Rene Faber L'Albufera

10-4-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

11-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

6-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde

24-2-2018 Carrasqueira 38.40222 N -8.76028 W Portugal Siebe Bonthuis

28-4-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ofra Carmi

vrijdag 7 september 2018 Page 148 27-8-2018 Dianki 12.87500 N -16.46278 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 149 Name Ringer: Jos Hooijmeijer Colourcode: Y5LLBY Name 2nd Ringer: Ringnr: 1443341 Ringing Date: 26-5-2011 Ringing site: Gaast, Jouke Sjoerdspolder Age (in days; 50 = juv.; 99 = ad.): 9 The Netherlands 53.00361 N 5.41972 E

Resightings of this bird:

Date Site Observer(s)

17-7-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

17-7-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jouke van der Meulen

31-3-2013 Reninge, Polders Lo-Reninge 50.96806 N 2.78417 E Belgium Koen Devos

14-6-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

14-1-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rene Faber Jouke Altenburg

15-1-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rene Faber Jouke Altenburg

16-1-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rene Faber

3-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Tom Jager

3-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

4-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer Tom Jager

25-3-2014 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Rosemarie Kentie

13-6-2014 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jelle Loonstra

20-6-2014 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jelle Loonstra

vrijdag 7 september 2018 Page 150 20-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rene Faber (RUG) Dirk Tanger

23-6-2014 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jelle Loonstra

25-6-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Jos Hooijmeijer

7-4-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Jan Kramer

1-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

11-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

17-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

24-6-2015 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Emma Penning

27-6-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Rinkje van der Zee

29-3-2016 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

11-6-2016 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Guillaume Senterre

16-6-2016 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

23-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

23-6-2016 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Guillaume Senterre

29-3-2017 Ferwoude, Fallingabuurster- en 53.00639 N 5.44611 E The Netherlands Age Hulder Aaltjemeerpolder

25-5-2017 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Jos Hooijmeijer

vrijdag 7 september 2018 Page 151 16-6-2017 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Age Hulder Anna Hatsagi

20-4-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

4-6-2018 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Tim Oortwijn

18-6-2018 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Wiebe Kaspersma Tim Oortwijn

20-6-2018 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Tim Oortwijn

2-7-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Ysbrand Galama

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 152 Name Ringer: Rosemarie Kentie Colourcode: Y5RLLR Name 2nd Ringer: Ringnr: 1433826 Ringing Date: 9-5-2009 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 1 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

15-6-2011 It Heidenskip, Polder De Vooruitgang 52.94278 N 5.48694 E The Netherlands Ysbrand Galama

18-4-2012 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

19-3-2013 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Ysbrand Galama

9-5-2013 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jorge Gutiérrez

21-3-2014 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Rene Faber (RUG)

12-4-2014 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

6-5-2014 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

14-6-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

16-11-2014 Baila, Baila mudflats 12.88894 N 016.37945 W Senegal Jan van der Kamp

8-3-2015 Dordrecht, Biesbosch,Tongplaat 51.74556 N 4.70000 E The Netherlands Hans Gebuis

13-3-2015 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer Eric ten Cate

13-3-2015 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Alice McBride West

17-3-2015 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Wiebe Kaspersma

vrijdag 7 september 2018 Page 153 14-5-2015 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

15-5-2015 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

17-5-2015 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

16-6-2015 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde

16-6-2015 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Haije Valkema

16-6-2015 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde

18-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Haije Valkema

18-6-2015 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

19-6-2015 Idzegea, Bratte Polder 52.97528 N 5.55056 E The Netherlands Egbert van der Velde

23-6-2015 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

22-3-2016 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Guillaume Senterre

4-4-2016 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

11-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

8-12-2016 Baila, Baila mudflats 12.88894 N 016.37945 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

14-3-2017 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

15-3-2017 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

vrijdag 7 september 2018 Page 154 22-3-2017 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Anneke Zeinstra

25-3-2017 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

9-6-2017 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jos Hooijmeijer

5-11-2017 Baila, Baila mudflats 12.88894 N 016.37945 W Senegal Idrissa Ndiaye

11-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

12-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Wiebe Kaspersma

14-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

14-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Wiebe Kaspersma

16-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Marycha Franken

8-4-2018 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Libbe Zijlstra

14-4-2018 It Heidenskip, Polder De Vooruitgang 52.94278 N 5.48694 E The Netherlands Jan Kramer

12-5-2018 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Ilse Hooijmeijer Jos Hooijmeijer

15-6-2018 Oudega (GS), Grote Noordwolderpolder, 52.91000 N 5.50611 E The Netherlands Jos Hooijmeijer Algemiene wei

6-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

25-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 155 2-9-2018 Tobor 12.6597 N -16.26313 W Senegal Jos Hooijmeijer Idrissa Ndiaye Pape Cissao Diedhiou

vrijdag 7 september 2018 Page 156 Name Ringer: Jorge Gutiérrez Colourcode: Y5RLRY Name 2nd Ringer: Ringnr: 2505406 Ringing Date: 13-5-2013 Ringing site: Koudum, Polder De Samenvoeging Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.91000 N 5.46139 E

Resightings of this bird:

Date Site Observer(s)

4-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

6-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

23-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

23-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

25-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

15-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

9-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

12-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

14-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

14-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

vrijdag 7 september 2018 Page 157 19-3-2015 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Marycha Franken West

15-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

12-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

14-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

25-3-2016 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Marycha Franken West

4-6-2016 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Wiebe Kaspersma Mo Verhoeven

5-7-2016 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Mo Verhoeven

7-9-2016 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Khady Gueye

17-11-2016 Porto Alto, Evoa 38.85000 N -8.96667 W Portugal Luis Arede

6-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

16-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Mario Huizinga Erva

17-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

19-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Jacob de Vries Erva

7-3-2017 Greonterp, De Ryp 52.99833 N 5.52250 E The Netherlands Jouke van der Meulen

21-3-2017 Koudum, Polder Groote Wester Gersloot- 52.90278 N 5.44722 E The Netherlands Jos Hooijmeijer Oost, De Poel

28-3-2017 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Jan Kramer Eelco Brandenburg

vrijdag 7 september 2018 Page 158 5-6-2017 Oudega (GS), Grote Noordwolderpolder, 52.91000 N 5.50611 E The Netherlands Ysbrand Galama Algemiene wei Anna Hatsagi

2-2-2018 Porto Alto, Giganta ricefields, Ponta da 38.910421 N -8.919625 W Portugal Kees de Jager Erva, East

4-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Kees de Jager

4-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

5-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

8-2-2018 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

23-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

6-3-2018 Harlingen, Waddensea 53.15000 N 5.41667 E The Netherlands Eus de Groot

26-3-2018 Koudum, Polder Groote Wester Gersloot- 52.90278 N 5.44722 E The Netherlands Jos Hooijmeijer Oost, De Poel

1-6-2018 Koudum, Polder Groote Wester Gersloot- 52.90278 N 5.44722 E The Netherlands Jos Hooijmeijer Oost, De Poel

6-8-2018 Tobor 12.6597 N -16.26313 W Senegal Pape Cissao Diedhiou

29-8-2018 Tobor 12.6597 N -16.26313 W Senegal Idrissa Ndiaye Jos Hooijmeijer

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 159 Name Ringer: Mo Verhoeven Colourcode: Y5RLYB Name 2nd Ringer: Nathan Senner Ringnr: 2504857 Ringing Date: 10-5-2013 Ringing site: Koudum, Haanmeer Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.92333 N 5.43500 E

Resightings of this bird:

Date Site Observer(s)

11-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner Mo Verhoeven

16-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

19-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner Mo Verhoeven

19-6-2013 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

21-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

25-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Atser Sybrandy (RUG) Ysbrand Galama

27-6-2013 Hindeloopen, Gellehuisterpolder 52.92972 N 5.42778 E The Netherlands Nathan Senner

28-6-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

2-7-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Ysbrand Galama

3-7-2013 Blauwhuis, Jacobidyk 53.01667 N 5.53333 E The Netherlands Egbert van der Velde

4-7-2013 Tjerkwerd, Hemdijk 53.02972 N 5.51944 E The Netherlands Egbert van der Velde

21-3-2014 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

6-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

vrijdag 7 september 2018 Page 160 28-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

28-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

30-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

13-5-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

27-11-2014 Pache, Iala 12.035 N -15.641 W Guinea Bissau Haije Valkema Jos Hooijmeijer Jan van der Kamp

5-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Nathan Senner Mo Verhoeven

17-3-2015 Saint Denis du Payré 46.40000 N -1.25000 W France Paul Trotignon

18-3-2015 Saint Denis du Payré 46.40000 N -1.25000 W France Paul Trotignon

24-3-2015 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

29-5-2015 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

25-8-2015 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Haije Valkema Khady Gueye

17-3-2016 Saint-Georges-de-Didonne, Marais de la 45.596 N -0.966 W France Jean-Marc Frolet Briquetterie

22-3-2016 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Guillaume Senterre

29-5-2016 Koudum, Polder De Samenvoeging 52.91000 N 5.46139 E The Netherlands Jos Hooijmeijer

11-2-2017 Samorra Correia, Belmonte ricefields, 38.893934 N -8.794920 W Portugal Wim Tijsen Southeast

10-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

vrijdag 7 september 2018 Page 161 11-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

12-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

14-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

17-3-2017 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Wiebe Kaspersma

15-6-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

13-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

1-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

8-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Pablo Macias Torres

16-4-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 162 Name Ringer: Gjerryt Hoekstra Colourcode: Y5YRRY Name 2nd Ringer: Ringnr: 2503283 Ringing Date: 19-5-2012 Ringing site: Workum, Workumerbinnenwaard-Zuid Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.97917 N 5.41917 E

Resightings of this bird:

Date Site Observer(s)

27-5-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

18-12-2012 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Jos Hooijmeijer

27-1-2013 Puebla de Alcollarín 39.11667 N -5.78333 W Spain José Guerra Marc Gálvez

2-2-2013 Hernan Cortes 39.03333 N -5.93333 W Spain Theunis Piersma

22-3-2013 It Heidenskip, Ursulapolder 52.95889 N 5.46667 E The Netherlands Ysbrand Galama

5-4-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Marta Lomas Vega

11-5-2013 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Merlijn de Graaf

28-5-2013 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Berber de Jong

29-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride

30-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven

31-1-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

3-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Nathan Senner Alice McBride

13-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven

vrijdag 7 september 2018 Page 163 16-2-2014 Valdehornillos 39.05028 N -5.97583 W Spain Mo Verhoeven Alice McBride

16-5-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

19-5-2014 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Gjerryt Hoekstra

31-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

31-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven Nathan Senner

1-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

2-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

3-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

4-2-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Jelle Loonstra Alice McBride

18-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven Alice McBride Nathan Senner

7-4-2015 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

7-2-2016 Yelbes 38.96944 N -6.00167 W Spain Rosemarie Kentie

11-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Haije Valkema

11-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie Haije Valkema

15-2-2016 Yelbes 38.96944 N -6.00167 W Spain Dirk Tanger

15-2-2016 Yelbes 38.96944 N -6.00167 W Spain Haije Valkema

vrijdag 7 september 2018 Page 164 15-2-2016 Yelbes 38.96944 N -6.00167 W Spain Fred Cottaar

16-2-2016 Yelbes 38.96944 N -6.00167 W Spain Haije Valkema

8-4-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

1-6-2016 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Jos Hooijmeijer

31-1-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Mo Verhoeven

2-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

2-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

3-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Mo Verhoeven

3-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Jelle Loonstra

4-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Wiebe Kaspersma

4-2-2017 Hernan Cortes 39.03333 N -5.93333 W Spain Egbert van der Velde Wiebe Kaspersma

7-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

7-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

8-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

8-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

vrijdag 7 september 2018 Page 165 9-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

9-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

10-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Wiebe Kaspersma

10-2-2017 Santa Amalia 39.00389 N -5.98611 W Spain Egbert van der Velde

20-3-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

14-4-2017 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

3-2-2018 Isla Mayor, rice fields 37.13944 N -6.18944 W Spain Jos Hooijmeijer Libbe Zijlstra

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Egbert van der Velde

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Haije Valkema

18-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

19-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Wim Tijsen

20-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

20-2-2018 Carregado, ricefields 39.029416 N -8.941725 W Portugal Siebe Bonthuis

27-3-2018 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Alice McBride

5-6-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

29-8-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 166 2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

5-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 167 Name Ringer: Ysbrand Galama Colourcode: Y6LBLB Name 2nd Ringer: Rocío Marquez Ferrando Ringnr: 3655593 Ringing Date: 31-5-2011 Ringing site: Koudum, Polder De Oosterling Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.93444 N 5.45778 E

Resightings of this bird:

Date Site Observer(s)

6-6-2011 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

9-9-2011 Huelva, Parque Natural de las Marismas 37.23333 N -6.96667 W Spain Rocío Marquez Ferrando del Odiel

22-3-2012 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

20-4-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

30-5-2012 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

18-12-2012 El Rocio, Lucio de Mari Lopez 37.04833 N -6.30472 W Spain Jos Hooijmeijer

25-1-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

25-1-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

6-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

7-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

22-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rene Faber Erva

17-3-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Nathan Senner

11-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama Gjerryt Hoekstra

vrijdag 7 september 2018 Page 168 17-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

19-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

20-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

25-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

26-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

20-12-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer

5-2-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Jos Hooijmeijer Tom Jager

15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

21-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

24-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

17-3-2014 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama Pete Potts

6-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

11-6-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber (RUG)

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 169 Name Ringer: Ysbrand Galama Colourcode: Y6LRBB Name 2nd Ringer: Gjerryt Hoekstra Ringnr: 3655589 Ringing Date: 20-5-2011 Ringing site: Koudum, Polder De Oosterling Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.93444 N 5.45778 E

Resightings of this bird:

Date Site Observer(s)

15-6-2011 It Heidenskip, Polder De Vooruitgang 52.94278 N 5.48694 E The Netherlands Ysbrand Galama

13-1-2012 Isla Mayor, Veta la Palma, rice fields 37.03556 N -6.19500 W Spain Rocío Marquez Ferrando

15-2-2012 Yelbes 38.96944 N -6.00167 W Spain Jos Hooijmeijer Tom Jager

20-3-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Lucie Schmaltz

20-3-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Helena Batalha Lucie Schmaltz

28-5-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Jos Hooijmeijer

8-2-2013 Almoharin 39.15000 N -6.03333 W Spain Nathan Senner Mo Verhoeven

8-2-2013 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Nathan Senner

10-2-2013 Almoharin 39.15000 N -6.03333 W Spain Nathan Senner Mo Verhoeven

11-2-2013 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Nathan Senner

14-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

23-3-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

10-4-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

vrijdag 7 september 2018 Page 170 12-4-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

18-6-2013 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

21-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

25-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

7-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

17-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

23-2-2014 Hernan Cortes 39.03333 N -5.93333 W Spain Alice McBride Mo Verhoeven

15-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

21-3-2014 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

30-4-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Raf Vervoort

6-6-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber (RUG)

28-1-2015 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Alice McBride Nathan Senner

29-1-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Mo Verhoeven Alice McBride

1-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

5-2-2015 Almoharin 39.15000 N -6.03333 W Spain Alice McBride Nathan Senner Mo Verhoeven

12-2-2015 Santa Amalia 39.00389 N -5.98611 W Spain Nathan Senner Alice McBride Mo Verhoeven

vrijdag 7 september 2018 Page 171 18-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

19-2-2015 Hernan Cortes 39.03333 N -5.93333 W Spain Nathan Senner Alice McBride Mo Verhoeven

8-3-2015 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Haije Valkema

16-3-2015 Molkwerum, Noorderpolder 52.91139 N 5.41778 E The Netherlands Marycha Franken

11-6-2015 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Marycha Franken

16-1-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Fernando Yuste

15-2-2016 Santa Amalia 39.00389 N -5.98611 W Spain Haije Valkema

22-3-2016 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Wiebe Kaspersma West

15-6-2016 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

29-1-2017 Almoharin 39.15000 N -6.03333 W Spain Mo Verhoeven Drew Bingrun

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

10-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Siebe Bonthuis Erva

13-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Wim Tijsen

13-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Wim Tijsen

14-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Maarten Hotting

12-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

vrijdag 7 september 2018 Page 172 14-3-2017 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

15-3-2017 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Ysbrand Galama

25-3-2017 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jan Kramer

15-6-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

17-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Ysbrand Galama Egbert van der Velde Anna Hatsagi

17-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Egbert van der Velde

25-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Egbert van der Velde

5-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Maarten Hotting

20-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Wim Tijsen

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

21-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Siebe Bonthuis

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Wiebe Kaspersma

14-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

16-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Jelle Loonstra Wiebe Kaspersma

20-3-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer Eric ten Cate

14-4-2018 It Heidenskip, Polder Aent Lieuwes 52.93333 N 5.48361 E The Netherlands Jan Kramer

vrijdag 7 september 2018 Page 173 8-6-2018 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Tim Oortwijn

21-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Siebe (RUG) Bonthuis

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 174 Name Ringer: Gjerryt Hoekstra Colourcode: Y6LYRY Name 2nd Ringer: Ringnr: 2503291 Ringing Date: 26-5-2012 Ringing site: Warns, Kampenspolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.87472 N 5.39833 E

Resightings of this bird:

Date Site Observer(s)

31-5-2012 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Bas van den Boomgaard Sytse Kooistra

5-6-2012 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Rienk Jelle Hibma (RUG)

31-1-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Nuno Cidraes Vieira Erva

3-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

3-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

5-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

6-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

14-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Jan Beekman Bullewijkerpolder, Landje van Geijsel

15-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Rene Faber Bullewijkerpolder, Landje van Geijsel

2-4-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

30-4-2013 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Marycha Franken

3-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

4-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

vrijdag 7 september 2018 Page 175 12-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

15-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

17-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

20-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

21-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

21-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

22-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pete Potts Erva Anne de Potier

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rienk Jelle Hibma Erva

26-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Hendriekus Algra Erva

12-3-2014 Sneek, Wite en Swarte Brekken 52.596 N 5.403 E The Netherlands Egbert van der Velde

20-3-2014 Warns, Kampenspolder 52.87472 N 5.39833 E The Netherlands Rene Faber (RUG)

29-4-2014 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber (RUG)

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Alberto Pastoriza

11-2-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Alberto Pastoriza

23-2-2015 El Palmar, Tancat de Baldovi, Parque 39.31944 N -0.33472 W Spain Jan Kramer Natural de L'Albufera Rennie Kramer

vrijdag 7 september 2018 Page 176 17-3-2015 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Marycha Franken West

6-4-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Rene Faber

10-4-2015 Koudum, Polder Grote Wester Gersloot- 52.90056 N 5.43194 E The Netherlands Alice McBride West

4-9-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 177 Name Ringer: Egbert van der Velde Colourcode: Y6RYLY Name 2nd Ringer: Haije Valkema Ringnr: 2503151 Ringing Date: 13-5-2012 Ringing site: Oudega, De Rige Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99556 N 5.56861 E

Resightings of this bird:

Date Site Observer(s)

13-6-2012 Oudega, Tsjerkemar 52.99833 N 5.55361 E The Netherlands Egbert van der Velde Haije Valkema

23-6-2012 Sanfirden, Sanfurd Brekkenkant 52.98889 N 5.53111 E The Netherlands Haije Valkema

27-6-2012 Gaast, Jouke Sjoerdspolder 53.00361 N 5.41972 E The Netherlands Rienk Jelle Hibma (RUG)

9-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

19-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Marten Sikkema Erva

19-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rene Faber Erva

8-4-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Bert Zijlstra (RUG)

9-4-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Jouke van der Meulen

11-6-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Marycha Franken

19-6-2013 Koudum, Polder De Oosterling 52.93444 N 5.45778 E The Netherlands Ysbrand Galama

17-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

18-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

20-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Hendriekus Algra

vrijdag 7 september 2018 Page 178 4-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

6-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva

7-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

14-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

18-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

9-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

10-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

10-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

13-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

13-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Atser Sybrandy (RUG)

13-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

13-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

14-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

14-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

15-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

20-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

vrijdag 7 september 2018 Page 179 24-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

11-4-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Raf Vervoort

9-6-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

13-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

13-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

14-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

15-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

8-3-2015 Heeg, Gouden Boaijum 52.96499 N 5.61991 E The Netherlands Haije Valkema

12-3-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Haije Valkema

16-3-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

16-4-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Anneke Zeinstra

12-6-2015 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde Haije Valkema

12-11-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Idrissa Ndiaye

9-2-2016 Hernan Cortes 39.03333 N -5.93333 W Spain Rosemarie Kentie

vrijdag 7 september 2018 Page 180 21-3-2016 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

3-6-2016 Oudega, Tsjerkemar 52.99833 N 5.55361 E The Netherlands Haije Valkema

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

2-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

7-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Siebe (RUG) Bonthuis

12-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

15-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Bob Loos

7-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

10-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

11-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

13-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

14-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

22-3-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

12-6-2017 Heeg, De Pine 52.97889 N 5.58306 E The Netherlands Egbert van der Velde

25-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Egbert van der Velde

26-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Egbert van der Velde

vrijdag 7 september 2018 Page 181 27-6-2017 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Tim van der Meer

29-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Egbert van der Velde

29-6-2017 Sanfirden, Sanfurderhoek 52.98611 N 5.51417 E The Netherlands Tim van der Meer

23-2-2018 Porto Alto, Toneca 38.95361 N -8.93639 W Portugal Siebe Bonthuis

14-3-2018 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Anton Duijnhouwer Bullewijkerpolder, Landje van Geijsel

20-3-2018 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Anton Duijnhouwer Bullewijkerpolder, Landje van Geijsel

23-3-2018 Oudega, De Rige 52.99556 N 5.56861 E The Netherlands Egbert van der Velde

13-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

19-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Siebe (RUG) Bonthuis

19-6-2018 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

30-8-2018 Oussouye, Niambalang mudflats 12.447 N -16.480 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 182 Name Ringer: Ysbrand Galama Colourcode: Y6YBBB Name 2nd Ringer: Gjerryt Hoekstra Ringnr: 2503136 Ringing Date: 23-5-2012 Ringing site: Hindeloopen, Kleine Wiskepolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.93694 N 5.44667 E

Resightings of this bird:

Date Site Observer(s)

14-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rinkje van der Zee

28-6-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rinkje van der Zee

29-6-2012 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

7-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

10-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

10-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

10-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

20-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Rene Faber Erva

21-3-2013 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Ysbrand Galama

22-3-2013 Workum, Workumer Nieuwland 52.95500 N 5.43194 E The Netherlands Merlijn de Graaf

13-6-2013 It Heidenskip, Polder De Vooruitgang 52.94278 N 5.48694 E The Netherlands Ysbrand Galama

28-10-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Mo Verhoeven

7-11-2013 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Hendriekus Algra

vrijdag 7 september 2018 Page 183 7-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Maarten Hotting Erva Wim Tijsen

8-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Theunis Piersma Erva

14-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

18-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

17-3-2014 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Ysbrand Galama Pete Potts

7-5-2014 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

19-10-2014 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

8-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

9-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

12-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

14-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

22-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

23-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

23-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

19-3-2015 Koudum, Polder Het Hooge Land 52.92806 N 5.44778 E The Netherlands Wiebe Kaspersma

10-4-2015 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Piet Wiepke Bouma

vrijdag 7 september 2018 Page 184 8-5-2015 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Rene Faber

10-6-2015 Stavoren, Zuidermeerpolder 52.87611 N 5.38361 E The Netherlands Marycha Franken

5-11-2015 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

4-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Wim Tijsen Erva

4-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

14-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

14-2-2016 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

25-3-2016 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven Paulien van der Werf

21-5-2016 Hindeloopen, Kleine Wiskepolder 52.93694 N 5.44667 E The Netherlands Ysbrand Galama

5-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

6-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Haije Valkema

17-11-2016 Isla Mayor, Veta la Palma 36.97083 N -6.23500 W Spain Rocío Marquez Ferrando

30-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

30-1-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

14-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Bob Loos Erva

16-2-2017 Porto Alto, Giganta ricefields, Cardal 38.921737 N -8.977164 W Portugal Jacob de Vries

vrijdag 7 september 2018 Page 185 18-2-2017 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Mario Huizinga Erva

22-3-2017 Hindeloopen, Kleine Wiskepolder 52.93694 N 5.44667 E The Netherlands Ysbrand Galama

21-5-2017 Hindeloopen, Kleine Wiskepolder 52.93694 N 5.44667 E The Netherlands Ysbrand Galama

17-2-2018 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Astrid Kant Ronald Messemaker

15-3-2018 Koudum, Haanmeer 52.92333 N 5.43500 E The Netherlands Mo Verhoeven

23-5-2018 Workum, Workumerbinnenwaard-Noord 52.99611 N 5.41139 E The Netherlands Alice McBride

2-9-2018 Ziguinchor, Colobane ricefields 12.585 N -16.285 W Senegal Idrissa Ndiaye Jos Hooijmeijer

vrijdag 7 september 2018 Page 186 Name Ringer: Jos Hooijmeijer Colourcode: Y6YBRB Name 2nd Ringer: Rienk Jelle Hibma (RUG) Ringnr: 2502956 Ringing Date: 30-4-2012 Ringing site: Gaast, Polder Gaast-Ferwoude Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 53.01806 N 5.43194 E

Resightings of this bird:

Date Site Observer(s)

7-6-2012 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Rienk Jelle Hibma (RUG)

7-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva Pieter Breeuwsma

10-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Pieter Breeuwsma Erva Haije Valkema

10-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

11-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

11-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Gjerryt Hoekstra Erva

13-2-2013 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Ysbrand Galama Erva

22-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Anton Duijnhouwer Bullewijkerpolder, Landje van Geijsel

22-3-2013 Bourgoyen, de Meersen 51.05944 N 3.66972 E Belgium Rudi Baetsle

19-4-2013 Gaast, Polder Gaast-Ferwoude 53.01806 N 5.43194 E The Netherlands Merlijn de Graaf

25-6-2013 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

12-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

14-2-2014 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Egbert van der Velde Erva

vrijdag 7 september 2018 Page 187 23-3-2014 Pikesyl, Hisse- en Pikemar 53.00111 N 5.57222 E The Netherlands Egbert van der Velde

24-6-2014 Workum, Workumerbinnenwaard-Zuid 52.97917 N 5.41917 E The Netherlands Gjerryt Hoekstra

25-6-2014 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde Haije Valkema

13-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

21-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

21-2-2015 Porto Alto, Cara Larga 38.96167 N -8.92056 W Portugal Haije Valkema

23-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Haije Valkema Erva

25-2-2015 Porto Alto, Giganta ricefields, Ponta da 38.91667 N -8.93333 W Portugal Dirk Tanger Erva

29-4-2015 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Emma Penning

27-6-2015 Exmorra, Parregaastermeer 53.03194 N 5.45361 E The Netherlands Emma Penning

24-8-2015 Fintiok 12.655 N -16.113 W Senegal Haije Valkema Jos Hooijmeijer

23-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Egbert van der Velde

23-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Haije Valkema

24-2-2016 Samorra Correia, Belmonte ricefields 38.91667 N -8.83333 W Portugal Haije Valkema

1-4-2016 Tjerkwerd, Rytseterp 53.03722 N 5.48972 E The Netherlands Jan Kramer Jan Scholtmeijer

6-4-2016 Allingawier, Vierhuizen en Bonjeterp 53.04556 N 5.44806 E The Netherlands Guillaume Senterre

vrijdag 7 september 2018 Page 188 14-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

16-6-2016 Idzegea, It Joo 52.98583 N 5.55500 E The Netherlands Egbert van der Velde

4-5-2018 Allingawier, Vierhuizen en Bonjeterp 53.04556 N 5.44806 E The Netherlands Mo Verhoeven Jelle Loonstra

16-5-2018 Piaam, Kooiwaard 53.03111 N 5.40028 E The Netherlands Tim Oortwijn

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

4-9-2018 Agnack, Agnack ricefields 12.592 N -16.117 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 189 Name Ringer: Niko Groen (RUG) Colourcode: Y6YRRB Name 2nd Ringer: Haije Valkema Ringnr: 3654168 Ringing Date: 20-5-2011 Ringing site: Nijhuizum, Monnikeburenpolder Age (in days; 50 = juv.; 99 = ad.): 99 The Netherlands 52.99278 N 5.49972 E

Resightings of this bird:

Date Site Observer(s)

23-4-2012 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Niko Groen (RUG)

27-5-2012 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

21-2-2013 Alfafar, Marjales de Alfafar, Parque 39.40000 N -0.36667 W Spain Francisco Javier García-Gans Natutal L'Albufera

26-2-2013 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Marten Sikkema L'Albufera

26-2-2013 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Rene Faber L'Albufera Marten Sikkema

26-2-2013 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Rene Faber L'Albufera

16-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Jan Beekman Bullewijkerpolder, Landje van Geijsel

17-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Anton Duijnhouwer Bullewijkerpolder, Landje van Geijsel

25-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Tijs van den Berg Bullewijkerpolder, Landje van Geijsel

30-3-2013 Ouderkerk a/d Amstel, Holendrechter en 52.28167 N 4.93028 E The Netherlands Rene Faber Bullewijkerpolder, Landje van Geijsel

2-4-2013 It Heidenskip, Heidenschapster Polder 52.95250 N 5.48944 E The Netherlands Ysbrand Galama

5-6-2013 Oudega, Westerskatting 53.00222 N 5.55167 E The Netherlands Rene Faber

8-6-2013 Workum, Workumermeer 52.99278 N 5.46389 E The Netherlands Rene Faber

vrijdag 7 september 2018 Page 190 15-6-2013 Idzegea, De Geeuw 52.98417 N 5.56722 E The Netherlands Egbert van der Velde

23-6-2013 Hiers-Brouage, Reux 45.81556 N -1.02083 W France Loïc Jomat

3-2-2014 Puebla del Río, Isla Mínima, rice fields 37.14278 N -6.12417 W Spain Jos Hooijmeijer Tom Jager

11-2-2014 Alfafar, Marjales de Alfafar, Parque 39.40000 N -0.36667 W Spain Francisco Javier García-Gans Natutal L'Albufera

19-2-2014 Silla, Tancat de la Rattla, Parque Natural 39.32827 N -0.39491 W Spain Francisco Javier García-Gans de L'Albufera (Valencia)

21-2-2014 El Palmar, El Campot, Parque Natural de 39.31444 N -0.34000 W Spain Rene Faber L'Albufera

21-2-2014 Silla, Tancat de la Rattla, Parque Natural 39.32827 N -0.39491 W Spain Francisco Javier García-Gans de L'Albufera (Valencia)

22-2-2014 El Palmar, Tancat de L'Estell, Parque 39.30020 N -0.31260 W Spain Rene Faber Natural de L'Albufera Gerrit Gerritsen

22-2-2014 El Palmar, Tancat de L'Estell, Parque 39.30020 N -0.31260 W Spain Gerrit Gerritsen Natural de L'Albufera

22-2-2014 El Palmar, Tancat de L'Estell, Parque 39.30020 N -0.31260 W Spain Rene Faber Natural de L'Albufera

23-2-2014 El Palmar, Tancat del Fangar, Parque 39.30621 N -0.32684 W Spain Rene Faber Natural de L'Albufera

23-2-2014 El Palmar, Tancat de L'Estell, Parque 39.30020 N -0.31260 W Spain Gerrit Gerritsen Natural de L'Albufera

26-2-2014 El Palmar, Tancat de Baldovi, Parque 39.31944 N -0.33472 W Spain Bosco Dies Natural de L'Albufera

5-3-2014 Catarroja, Tancat de Villalba, Parque 39.37851 N -0.33920 W Spain Bosco Dies Natural de L'Albufera

6-3-2014 Catarroja, Tancat de Naia, Parque Natural 39.37982 N -0.36452 W Spain Bosco Dies de L'Albufera

8-4-2014 Kleine Gaastmeer, Kaappolder West 52.97444 N 5.50528 E The Netherlands Haije Valkema

vrijdag 7 september 2018 Page 191 29-5-2014 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Jan Kramer

31-5-2014 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Jan Kramer

23-2-2015 Alfafar, Marjales de Alfafar, Parque 39.40000 N -0.36667 W Spain Jan Kramer Natutal L'Albufera Rennie Kramer

23-2-2015 El Palmar, Tancat de Baldovi, Parque 39.31944 N -0.33472 W Spain Jan Kramer Natural de L'Albufera Rennie Kramer

16-4-2015 Nijhuizum, Monnikeburenpolder 52.99278 N 5.49972 E The Netherlands Atser Sybrandy (RUG)

1-9-2018 Fintiok 12.655 N -16.113 W Senegal Jos Hooijmeijer Idrissa Ndiaye Ruth Howison

vrijdag 7 september 2018 Page 192 vrijdag 7 september 2018 Page 193