Bats in Beds July 2015 Volume 107
Newsletter of the Bedfordshire Bat Group Website www.bedsbatgroup.org.uk. E mail: [email protected] Facebook –The Bedfordshire Bat Group. Blog http://bedfordshirebatgroup.blogspot.com/
The New Bat Cave Photograph Dick Hogg
Jersey Bat Group 12-13 Editor’s Bit/Alcathoe 2 Korean Bats 14-15 Greater Stockgrove Bat Map 3-5 A bargain way of getting 16 Other surveys 6 sonograms Bat care 7-8 Fly by Night 17 Congratulations 9 Animal magnetism 18 Priory Country Park 10 White nose syndrome 19 A new serotine roost 11 Social call 20
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Editors’Bit the website that contain the old We are happy to collect.” Andy number and adjust hem, but for the Banthorpe” Time seems to be moving very fast at moment both numbers work Andy’s e mail is the moment and it was only when I [email protected] came to put this issue together that I The sobbing sound you hear is me, realised just how much we have who has to change the number one done. thousand It has been a quite amazing thre of our (newly re-ordered) Renewals bookmarks) months with a lot of new discoveries -. as you will see as you read on. The following people have renewed A plea from the county since the last issue: As always we encourage you to join moth recorders Yan Yee Lau( Surrey) Chris Vine in on surveys or walks if anything (Cambridge) grabs your fancy get in contact with the organisers ( see page 20)
New number for Bat i f New members
The following have joined the bat Conservation Trust helpline “If you are doing roost checks this group since the last issue Those in year in Beds and find moth wings bold print have already ventured out can you please bag them up for us with us.: Poppy McDonald, ( Bury St with a label giving site, date and Edmunds) Tommy Root your name. BLEBs are the usual (Huntingdon (Bedford) Brandon ones to leave the inedible bits of their Murray (Arlesey),Jana Please note the change in number, meals for us to id but others do as Darmovzalova, Bedford) Emily the old 0845 number has been well. We have a good series of data Costlello (Stevenage) replaced with 0345. I will gradually from the BLEBs at Maulden but track down all the other pages on others would be very useful.
We thought we had a good start to the season but the latest Surrey bat group newsletter shows we are outclassed On a Nathusius survey as well as Nathusius they caught two Alcatho9e bats, put tags on them which didn’t fall off found an Alcathoe roost in a building, which as far as they know is the first roost in Europe to be found in a building rather than a tree. Photo by Derek Smith
Tony Aldhous has carried out the National Bat Monitoring Programme count at the Potton serotine roost we first found in 2008
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Greater Stockgrove Bat The revised programme is: Map weekend Sat 15th August 11:00 - 16:30 King’s Wood box survey (bring food and drink)
19:00 *Briefing meeting* for Saturday night’s trapping (Stockgrove Visitors’ Centre). 19:30 until late: Mist netting and trapping in King's Wood, with some roost monitoring in the wood.
Bob and I have been hard at work Sun 16th August planning this weekend and at the end of May we had a pub lunch 11:00 - 16:30 Walk through Stockgrove, Oak Wood and to celebrate that we had the Rushmere, checking bat boxes as we go and planning the programme finalised. We came evening’s trapping. home to find a message on the ansaphone. It was Gill, the CEO 19:15 *Briefing meeting* for Sunday night’s trapping (Rushmere of the Greensand Trust, to tell us Visitors' Centre). there was a problem. Their 19:30 till late. Mist netting and trapping at Rushmere and Oak summer fayre and music concert Wood with monitoring of emergence from roosts. were scheduled for the night we were due to go to Rushmere. Netting will probably continue past midnight on both nights, but it should There was no way we could be possible to make arrangements for some people to leave earlier as long as change the date as the South we know in advance – please discuss this when you book. Lancs group had booked accommodation and time off A number of Bat Group members have already told us they plan to take work. Bob said to give us a couple part, which is great news. We’d like to encourage more of you to come along of days to see if we could rejig to at least some sessions – it should be exciting, with a chance of things. This we managed to do, encountering plenty of bat species as well as meeting members of other bat and a lovely logistical puzzle it groups. was too. The organisational complexity of putting on survey work on this scale We then had a meeting with Gill means that we shall need to plan everyone’s participation carefully. Could and she could not have been more you please let us know by Friday 31st July which sessions you want to helpful. She has offered to close come to. We’ll then let you know about car parking arrangements. the Stockgrove Cafe late on the Saturday afternoon, so we can We’re building in some arrangements for South Lancashire Bat Group hold the briefing meetings there members and others who are coming from out of county. These include a and has said the cafe can provide welcome meeting on the Saturday afternoon at 17:00 at Stockgrove Visitors’ us with food. When we looked at Centre, which will include talks on the ecology and history of the Greater the new schedule it was actually Stockgrove area and on the Bat Group’s work there since 1990. We’ll also better distributed in terms of make arrangements for out-of-county people to get food after the welcome effort. The Saturday is the harder meeting on Saturday and before the briefing meeting on Sunday. We’re of the two days and involves a lot thinking of a picnic lunch at Stockgrove for Sunday lunch time. If you want of walking over quite difficult to be involved in the welcome meeting or any of the meals, please let us terrain. As a result Sunday is a know by Wednesday 15th July. This does involve planning ahead, but it gentler day. means that we can ensure that we’ve made appropriate arrangements for everyone to eat in time for the start of the trapping sessions. The number of folk involved is slowly creeping towards the 40 * For the same reason, we shall need all participants in the netting and mark and we have access to a trapping sessions to be there at the briefing meeting for the night (19:00 on frightening array of skill and Saturday or 19:15 on Sunday). equipment. Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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The Greater Stockgrove new April survey in King’s Wood Project recent revealed two boxes occupied by Stockgrove produced records of Brown Long-Eareds (3 in one and 8 three new species this year. Jude was in another), but in May there were developments using her Echometer Touch on 6th Bob Cornes only birds. June produced 35 BLEs in April when the automatic ID four boxes, two of which were announced first Leisler’s and then st boxes installed on 1 February Nathusius’ Pip. Both turned out to be this year. In Stockgrove, 7 correct identifications when the boxes have been used so far, sonograms were checked. On 20th by at least three species (BLE, April she got recordings of Natterer’s Daubenton’s and Pip sp.). Box Bat at two locations. Natterer’s has rd 67 (installed 23 January this frequently turned up in King’s Wood th year) had 2 BLEs on 20 April and sometimes at Rushmere, but th and 4 May and one BLE on never before at Stockgrove. th 18 May. Finally, one of the new boxes in Oak Wood Otherwise, Stockgrove has been very (Bucks) had a Common Pip on much as usual. We tried a detector st 21 June. survey at the car park end of Baker’s Wood on 15th June, but there was Tree and building roosts little about other than the occasional A few of the trees in King’s Common Pip, Soprano Pip and Wood which had been Noctule. A harp trapping session at identified as containing the lake on 18th May was fruitless potential roost features were apart from two pregnant female The regular surveys and the investigated by Jonathan Durward Sopranos. The only other thing to preparation sessions for the BatMap (intrepid tree climber and owner of report was negative – for the first weekend (see page 3 and 6) have all endoscopes), but none was occupied time in years, a Stockgrove survey been going ahead and there’s plenty and rain cut the survey short. In had to be cancelled because of to report about the Greater Stockgrove, two trees have been weather. On 1st June heavy rain and Stockgrove area. occupied so far. The pine tree above strong winds were too much for us. the boathouse, previously This was probably the right decision, Bat boxes occasionally occupied by Noctules, because only two weeks later a tree contained a group of at fell beside the lake in windy least 6 Daubenton’s on conditions. 4th May. A tree in Baker’s Wood, favoured Baker’s Wood by Noctules in the last I investigated the previously two years, still has their unexplored private part of Baker’s approval – they were Wood on 2nd June, thanks to two of th there again on 18 May. the owners who kindly gave No other trees were permission and came round with me. found to be occupied, Bat activity was very patchy, but but a shed at Rushmere Common and Soprano Pips were had 3 BLEs on two very active in places, and there was occasions in May. The some Myotis activity later in the Rushmere Visitors’ evening. Most notable was Serotine Bats awaiting processing. Photo Vicki Centre had roosting BLEs and an old activity along a track through the Goddard King’s Wood. building near Stockgrove had middle of the wood. A single Common Pips (both in Bucks, Barbastelle pass on the public There are now 93 usable summer bat unfortunately). A house near Oak footpath on 6th April was the only boxes in Greater Stockgrove – 63 in Wood (Bucks again) is reported to other record, but a netting session is King’s Wood, 20 in Stockgrove have at least one and probably two planned later in July. (including Baker’s Wood), 8 in species of bat, and we plan to Rushmere and 2 in Oak Wood. A investigate this further. Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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Oak Wood by contrast proved Frustratingly, it was caught on the very productive. Nothing has been Buckinghamshire side of Rushmere, Busy Bat Group done there in previous years apart and it is a species we have never from noting bats flying over Black recorded in Bedfordshire. Pond and finding a Myotis roost in a tree. With a species like Brandt’s flying in King’s Wood, Oak Wood and the northern part of Rushmere but apparently not in Stockgrove, is there a commuting route between these woodland areas? In an attempt to answer this, Jude and I spent a late June evening in Brickhill Road, at a point where a narrow belt of woodland could form part of a link between Oak Wood and King’s Wood. Detector recordings revealed Common and Sopranos, a Serotine, a You may feel by now that Greater Barbastelle and Myotis activity, so the Stockgtove is the only thing answer could be yes. The more happening this season but there has answers we get, the more questions been lots of other stuff going on. Brandt’s bat. Photo Bob Cornes. raise themselves. There will certainly Thanks to everyone who has been be plenty to find out at the BatMap out with us so far this season. Since On 27th May a trapping and netting weekend. April the following have attended session in rather windy conditions field meetings or training sessions or caught 15 bats – 5 Sopranos, 2 given talks: Common Pips, 3 Natterer’s, 4 Brown Long-Eareds and, most excitingly, a Bob Cornes, Jonathan Durward Jude Brandt’s. This species has been Hirstwood., Dave Odell, Mark Best, previously recorded in King’s Wood Soggy Sabinarz, Daniel Hargreaves, only from the Greater Stockgrove Gwen Hitchcock, Tori Alexander, area. Thanks to Gwen for her help Poppy McDonald, Colin Carpenter, with the catching. A bat detector Danny Fellman, Andrew Palmer, transect walked around the wood by Claire Martin, Jo Rigby, Nicky Tori and Poppy recorded abundant Monsey, Antonio Moreno, Viv Heys, bat activity, with plenty of pips, lots Malcolm Harrison, Bill, Lesley and of big bat activity (we couldn’t be Rhys Champkin, Tony Aldhous, sure of species), a couple of BLE Alex Cole, Dick and Geraldine Hogg, passes (including the best sonogram Kel Robinson, Hedj Dollman, James I have ever seen) and a Barbastelle. Hanlon, Jo Pedder, Vicki Goddard, Jennie Attewell, Tommy Root, Ellie A rather bizarre evening near Beach, Jo Makin, Phil Gould, Chantal Helm, Asia and Ralph Davis, Steve Rushmere Visitors’ Centre on 13th Halton, Becky Nesbitt, Brandon June confirmed that the BLEs are still Whiskered Bat. Photo Bob Cornes Murray, Angie Cornwell, Marik roosting in the Centre – Gwen hand Mrs Marik, Jana Darmovzalova, netted a male emerging from the The photos show the differences in Juliette Butler, John Day ,Michelle roost. With sound effects from a colouration between Whiskered and Savage, John Fincham, James group of young locals who were Brandt’s. Brandt’s have paler fur, Hanlon, Lisa and Falon Wheeler, having an impromptu party in the especially around the face which is Martin O’Connor, Simon and Claara car park, we tried catching. Two mist typically very dark in Whiskered. The ear Pidgeon, Mark Ricketts, Stephen nets and a harp trap with lure caught and tragus have very pale bases in Mason only four bats - two Sopranos, a Brandt’s but are uniformly dark in
Brandt’s and a Whiskered. The Whiskered. There is a small but subtle Apologies to anyone I have missed Whiskered was the first we have difference in nostril shape. Other differences such as upper premolar tooth off the list caught in Greater Stockgrove. shapes are not visible in these photos. Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Volume 107
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Meanwhile elsewhere in Lakeside has proved to be as Bedfordshire spectacular as ever. Stockgrove Has been fascinating - Angie’s results You may be getting the impression th have been swallowed up by the that Greater Stockgrove is the only On May 11 Daniel Hargreaves joined us for the first Nathusius Greater Stockgrove report (p.4-5). thing we are doing at the moment, but that is not the case. The regular survey. .Three harp traps were set surveys have been continuing with up. We caught 73 bats before the Luton Parkway some spectacular results and we did temperature suddenly dropped just First bat to be heard was a Pip, manage to lay on a sonogram before eleven. Lots of soprano pips, couldn’t be sure which type it was. training day. fewer commons, a single Natterer's The second call which was picked up and a Daub. soon after that was a Soprano The sonogram below was made near Pipistrelle. We had good views of a HOCP the lake on the 11th June. The place st number of Pips flying up and down 21 May was heaving with bats. We reckon the tree lined path which at that Loads of activity at HOCP this there were seven species playing. (3 point is fairly close to the railway evening. Treated to great display by species of pip, Noctule ,Leisler’s, line. We saw and heard both Soprano 3 noctules as we left car park. serotine and Daubenton’s. The and Common Pipistrelles, with some Followed by a frenzy of pips. Daubs, numbers of Sopranos had risen to excellent views of them flying and a other myotis calls, and a serotine. 1115 and even the front entrance of number of feeding buzzes. Lake was teaming with life the roost was busy (98 bats). John Ed: Hedj took some amazing video of Day has complained of RSI due to On our return journey a Noctule was Noctule soaring at HOCP. When I have clicker excess on more than one heard via one of the detectors, it was worked out how to put this on to You occasion. not picked up by either of the other Tube, I hope to post a link which will let Attempt to catch a Nathuisius failed, two detectors in use. A good reason you see it. even though there was a Nathusius to have more than one make of flying overhead at the processing detector on these occasions. Calls th 18 June point continuously (20m from the from Myotis? were recorded, but Being near the longest day it harp trap). Soggy Sabiniarz they were not long enough calls to remained quite light this evening. make a positive id. There was a lot Feeding frenzy by the pips including Sandy Warren more activity from the Common and a lot of low flying and dive bombing. 21st April was very quiet, with a Soprano Pipistrelles on our way back The beauty of the light evening is massive total of only 4 bats on the to the starting point. Geraldine Hogg Hedj, Sooz and myself had some whole walk. The first bat we heard great views of 6 + big bats (noctule was a soprano, but that was before Those of you who check in to the and serotine) over the lake from the we had started walking. So the first facebook page or the blog on the overflow car park against a still bat we recorded was a Myotis web, this is all old news as the slightly red sky backdrop. Think (probably Natterer's). We also survey leaders have been great at Sooz enjoyed her first survey recorded soprano and common posting updates there. although she is a bit knackered now pipistrelles. It was quite cold and If all this makes you want to get out lol Kelly Robinson breezy, which may explain why so and about, please contact the survey few bats were about. Tony Aldhous leaders. Don’t forget there are also Box Checks scheduled at HOCP and Kings Wood in July(we are particularly keen to have people at the latter if they are coming to the Saturday at Kings Wood during the Bat map weekend as the S. Lancs lot will be unfamiliar with the wood).
Photo of sonogram recorded at Lakeside Jude Hirstwood
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Cheers Soggy fitted in with ease and there is enough space to fly a Noctule. Not having a Noctule to hand In the last few editions of the we used two pips instead. newsletter we have been telling you They both flew for twenty about the construction of the Bat minutes .We celebrated their Cave. It’s completion was cue for a successful flight in typical bat Bat Group celebration. Those who group fashion – by having a helped with the construction and a piece of cake. couple freeloaders made their way to the grand opening, were plied with Soggy is to be congratulated food and drink and got to sit in
bat care. She now has a network of carers and ambulance drivers and hopes to keep up with all the new intake. We are lucky to have several carers who are well practiced at rearing for babies and longer term captives organising all the construction work. comfort as two captive bats were put Not that she can sit on her laurels. Photos Jude Hirstwood.. through their paces. Because of the The cave has already been in use and large size of the polytunnel we all we are entering the peak season for
Tiddles on the other hand was thriving and so Geraldine, Dick (Little brute flew off before he Tiddles -– the final and Soggy took her to be could be photographed)> They chapter released. She was originally were delighted to see him fly off found hanging from an outside so strongly as there had been a Tiddles has featured regularly in wall at a house in Tiddenfoot run of bats which die almost the newsletter ever since she was (hence her name) and they immediately they came into care brought to Soggy as a tiny pup. decided the best place to release because their injuries are severe – She nurtured her throughout last her was Tiddenfoot Water Park as and that is very dispiriting Summer, but judged she was not they knew there are lots of bats flying well enough to be released. and lots of midges for her to eat. In addition to this the Team has She was worried about Once Tiddles had the sniff of been able to rehabilitate and hibernating her at her place and freedom he was “off like a rocket” release a brown long eared found so asked Bill Champkin to take according to Soggy and never in Ampthill and 2 grounded male her on. Bill is a very experienced looked back) common pips one found in Potton bat carer who was delighted to be another in able to get back in the saddle and he kept Tiddles and another pip over the winter. We remarked that the second bat was flying strangely on his flight in the bat cave and he died during Thanks for hibernation. the Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015mealworms Vol 107 and the cuddles
8 In addition to this the Team has look for them himself even though I always make sure he has some in his been able to rehabilitate and home. I have seen him drink from his water bowl though so am hopeful he release a brown long eared found will start to realize when his dinner is too. He is quite vocal at feeding time in Ampthill and 2 grounded male and likes hanging around behind his tree house. common pips one found in Potton Angie Cornwell another in Swineshead. Photo of bat playing Angie Cornwell Another bat was found in Luton having been attacked by a cat. As you can see from the photo his wing had suffered extensive damage. Angie is looking after him and was given guidance from the Isle of Wight bat Hospital. Cat’s mouths are notoriously germ infested so he was put on a course of antibiotics
Photos by Dick Hogg
I had an update from Angie on the 24th Little'un' as I have named him is still with me. He was on antibiotics for a week with thanks to Soggy, Kel, Hedj and Dick for supplying them and getting them and the usage directions to me and for the advice they gave me - it was all greatly appreciated so a big thank you to them all for their help, and also to Dick & Geraldine for the mealworms I was able to collect form them at short notice.
And finally...
Please welcome bear bat. This guy has Sat behind the bar at the bear for many a year and we said goodbye to the bear as we know it this evening. Paul Shilladay has been a great supporter of anything wildlife for yrs and always offered up the pub for meetings and He has gained a little weight events and shall be greatly missed.but we now going from 3.7grams to 4.4 grams have charge of bear bat but as yet refuses to feed himself. He will take the mealworms from Kelly Robinson & Hedj Dollman tweezers or if I put them on the floor in front of him he'll take them but as yet he doesn't go and
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Gwen Hitchcock, (who is Reserves Ecology Officer for the Bedfordshire Cambridgeshire and Northamptonshire Wildlife Trust ) has successfully completed her training for a class 2 licence. She has been waiting for ages to hand net a bat. She finally got a chance at Rushmere Visitor’s Centre. Congratulations She caught the second bat out Chantelle Warriner née Kerr (right) effortlessly and on has produced a new bat group examination it proved to be a member. She worked with Aidan male. Matthews and in his honour gave birth on his birthday , even though it The photo of Gwen (below - was not due for a couple of weeks. she is on the left) was taken Ladies and gentlemen meet Caitlin with Danny Fellman and Paige, born 27 April @3.33am Melissa Donnelly on the weighing 7lbs exactly . Just as well April box check at Kings Chantelle was used to working hard Wood. Jude and Bob met in the wee small hour Melissa on a trip to Nicaragua and she was in
England for her final placement during her training as a vet nurse. Fortunately we found a brown long eared bat, so she was able to handle one of these charming Bill Champkin , a founder member creatures. of the bat group volunteered to join the committee at the AGM and has Congratulations also go to Melissa Jo Matthews also deserves no plan to move. As well as being for graduating. congratulations. She had just very active in the field, he has also taken successfully completed her first year on the long term care of bats and of an Engish Literature degree. All baby sits bats when Soggy has the the more impressive as she has two audacity to go away for a well young children and Aidan to keep earned break ( who gets away under control. without a mug shot, cos I couldn’t find the picture I wanted)
Jo Pedder (left) for escaping the committee after just one meeting. He is moving to Derbyshire. We will miss him, but he is coming down for the Greater Stockgrove Bat Map weekend.
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Excitement at Priory. have taken delight in drilling holes in Hunting for Nathusius the boxes, and the boxes are getting well weathered. Danny has decided Danny Fellman and Bob Cornes have Bob set out to trap Nathusius at not to replace them, but is instead rd now written up 7 years of results of Priory on 3 June. He put a message moving on to the next phase of the on the newsgroup and a total of ten findings from the Priory Country box project. project This is to be published in the people showed interest in coming, so He showed the paper to Ed Burnett, as well as the harp trap he got Danny Bedfordshire Natural History Journal who is his line manager and asked if this year. Bob was also asked to write to set up another mist net nearby, we could have a grant of £500 to buy which as it proved was just as well. a brief account for the Bat some Schwegler boxes. This was Conservation Trust’s Bat News. You It was a fantastic night, with a agreed immediately. Ed said it was a brilliant sunset, grebes on the lake can find the complete paper at “no brainer” not to support the http://www.bedsbatgroup.org.uk/wo and good views of flying noctules project-so Danny has bought 10 from the bird hide. Everyone enjoyed rdpress/wp- Schwegler boxes and he and Nicky content/uploads/2011/08/Bat-Boxes- nature at its best and soon we were Monsey carried out the second check passing the time being silly and at-Priory-Country-Park.pdf ( making use of her class 2 licence) at We posted it on the website because eating cake.(now there’s a novelty). the beginning of June. Poppy was heard to say she had her we want it to be accessible to people outside Bedfordshire. sub’s worth just from the number of Danny did all the field work and Bob cakes and biscuits she ate on evening spent a happy time looking at the surveys. data and running stats test as to see if the results were significant. Bob was able to point out identifying As far as we know this is the only features of bat s as they were caught. Kent box scheme which has been The harp trap caught a single checked monthly throughout the soprano, but Danny’s net caught no year, or which has monitored the less than 7 Daubenton’s. Bob let Jo boxes for this long. and Poppy practise handling the males, who we could be sure could It was originally set up to compare not be pregnant. They were calm and Gent and Kent boxes but has been well behaved, unperturbed by their steadily expanded over the years. capture. Bob took some photos and it Their main conclusions were: was only when they were downloaded that we realised on e of Kent boxes are much preferred to Gwent Boxes. the males bore an uncanny Peak numbers occur in resemblance to grumpy cat. spring and autumn. Nicky Monsey checking boxes at Kings Bats are more likely to be Wood. Photo Jennie Atwell found in groups in summer than at other times of the To every-one’s delight there was a year. common pip in one of the boxes and Bats show a preference for in another was a brown long eared slot width which alters with bat. This latter is tremendous news the season. They prefer the as we have failed to hear or catch a Photo Bob Cornes 20 cm wide (and longer) slots brown long eared bat at in summer when they Priory although there is aggregate and the 15cm slots one old record of one. in the winter These boxes will also be This might also be because of examined monthly, and differences in temperature. because it is possible to The boxes were used by remove the bats, Danny pipistrelles but there was one and Nicky should be able occasion when a barbastelle to identify them to was found in a box. species. Throughout the project woodpeckers
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mist net was set flights lines and returned a week up. Meanwhile later to try again. This time there the wind took to a were even more spectacular sighting blowing and by of the bats, but there was no way the time the nets they were coming into the harp trap, were up they thank you very much. So, the night billowed like s ended in disappointment – not even schooner in full the owner finding a maggot ridden flight. Not stoat in a flower bed made up for it. surprisingly the bats avoided the The owners have agreed to monitor net and played a the bats for the National Bat cruel game in Monitoring programme and we are Can you tell what it is yet? Photo Jude which they flew up to investigate, donating some of the droppings to a Hirstwood circled round and flew off research project. If you come across triumphantly. bat droppings contact A very special Roost [email protected] Phone: We are always to hear from people Disappointingly we did not catch 07958362539 about bats roosting in their house. In one, but the echolocation calls were May we had one such call. unequivocal – these were serotines. Once home we analysed the calls A few days later, we were sent a We were very excited, but our joy from the Griffin and found we had video and or excitement level rose. was nothing as compared to with the also recorded a barbastelle. This enthusiasm increased once the delight of the home owners. So when owners had collected some we were invited to have a look Bob Lisa King made filmed the bats droppings from the roost. and Tony Aldhous leapt at the emerging one evening. It is well chance worth a look. Have a look for Bats being bats, their chosen exit yourself at point was completely inaccessible to It is illegal to use a lure within 50m https://www.youtube.com/watch?v= hand nets (typical). So a triple high of a roost but we spotted a good spot POemY23_DoQ 60m from the roost which is on their
Protection Agency will provide your the bat and how many bats GP with the vaccine, but not all GPs have to be processed. Handling Bats believe this, so you may have to 2. Come on a box check. The battle to get past the receptionists. same rules apply . The Your best bet is to ask to see the processing takes longer as it practice nurse. involves checking rings or You will also need to get a letter adding new rings if you are from Danny Fellman (as Bat Group at Kings Wood. Chair) saying that you are going to Now the flight cage is up be involved in handling bats.) He 3. and running Soggy says that will only do this once you have she is happy for people to attended a number of surveys join her when she is flying
bats .She will announce on Once you have completed the course the news group when there of injections, there are a number of are going to be flying nights. ways you can get your hands on a Contact her if you are Illustration by Jean Christophe Gueguen bat. interested. https://www.flickr.com/photos/guc92/9675817840 1. If we are mist netting or
harp trapping let whoever is A number of you have said you All handling is at the discretion of in charge know that you would like to get some practice experienced handlers and it is your would like a chance to handling bats. The first step is to responsibility to ask for training handle. ( It is not guaranteed, make sure you have an up to date opportunities and to keep a log of it depends on the mood of rabies inoculation. The Health handling experiences. Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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Visiting the Jersey Bat Group. One outcome of our visit is but they are having difficulty getting the State of Jersey has now approved permission to survey them. Group one bat worker to do so. Miranda is The group is very active and keen to an experienced bat worker who has do new things. At the end of April, Bob went to travelled to England to gain Jersey to do some training for the experience and it is hoped that in When we were out for a meal with Jersey Bat Group and I managed to time she will be able to get references them on the Friday they made sneak along as excess baggage. from more established British bat several reference in passing to “the Jersey is a law unto itself- quite workers. (We are hoping to invite her roosters". It wasn’t until the next day literally as it is neither part of the UK over for some box checking later this we learn what these roosters were! not the EU. This means it has not year.). A second member who works signed up to the European Habitats as a consultant is also trying to do What you need to bear in mind is Directive and nor does Natural the same. Once these two are that Jersey is tiny compared to England play a role. They were quite Bedfordshire (see map below)which sad about the latter and we did our means they can tackle things which best to point out they were lucky so would be impossible for us as you they don’t have to deal with will see in the article which Ani let us anonymous bureaucrats like we do. have for the newsletter.
Without the legislation Jersey’s planning department has to make decisions about development without calling for a consultant’s report, which had problems of its own. What makes things difficult is that there is no licencing system like recognised, they can then go o n to we have, so it is difficult to do any train other members of the Bat research beyond bat detector Group. surveys. Jersey in interesting because it is
While we were there we visited a bat close to France and gets some species box project which has recently been which we don’t. There is a very set up using Kent Boxes. Bob was limited amount of woodland in the Jersey superimposed on a map of given permission to check them with island and it is confined to narrow Bedfordshire. a torch but permission had not been strips in river valleys. They have a lot granted to anyone in the Jersey Bat of caves and underground tunnels, ...
A roost Jersey style
Jersey is famous for its luxurious housing, so who could blame any bat for moving in. On the Saturday evening we went to a known roost. which is a home to some grey long eared bats. The site was very luxurious with some amazing topiary in front of the house The bats weren’t yet in the roost but we did manage to record some grey long eared bats who were presumably scouts checking out whether the roost was still available.We also got taken to a private chapel in glorious surroundings during the day. We didn’t spot any bat signs, but the garden was fab. Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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Jersey Bat Roost Register Long Ani Binet Eared Bats.
The Jersey Bat Group has been very It was active since reforming in 2006 but our records of surveys were not always winter kept in a particularly organised task to manner! To try to rectify this, and add the following a grant from the
Countryside Enhancement Scheme, records the Jersey Bat Roost Register Project to a was started in 2014 with the aim of database constructing a reliable, robust season. There are currently 247 roosts from which reports are created and database in which to hold all roost on the roost register. We aim to re- sent to the Jersey Biodiversity Centre information as well as designing a survey all sites every 2-5 years, in and the States of Jersey Environment survey form and protocol to ensure order to keep the database up to department to inform on the need for that all future survey data is date. New records will also be added a survey when assessing planning consistent. as they are identified. applications and energy efficiency
schemes. Annika Binet Associates in During the surveys Common, coordination with The Jersey Bat Soprano and Nathusius or Kuhl's In addition to the database we have Group (JBG) and the Department of pipistrelles, Serotine and Grey Long also created a map of roosts. The Environment took on the Eared bats were all picked up on map and database will be used to pin responsibility for delivering the sound recordings. Samples were point areas where further study is Jersey Bat Roost Register was collected from some sites and 25 required, as well as showing which collected from a number of different were sent to the University of roosts require further survey effort, sources prior to being verified and Warwick for DNA analysis. 20 of the this will help to focus the efforts of updated. 99 sites were surveyed samples were identified successfully the Jersey Bat Group in future. during the 2014 season, and more confirming the presence of Common will be surveyed during the 2015 and Nathusius pipistrelles and Grey
Bats focus their echolocation calls by opening their mouths. Source http://news.sciencemag.org/plants-animals/2015/05/bats-open-wide-focus-their- ultrasonic-beams
For bats, too many echoes can be like blurry vision. mouths, That’s because the nocturnal creatures navigate by projecting an bouncing ultrasonic sound off of their surroundings. In ultrasonic cramped spots, these sounds can reverberate, creating a beam up to noisy background that clouds the mammals’ sonic sight. four times Now, new research published online before print in the wider than on the descending leg. These counterintuitive Proceedings of the National Academy of Sciences has effects were due to diffraction, which causes sound discovered one way that bats might overcome this waves travelling through a smaller hole to spread out auditory ambush. Scientists found that the animals more. The researchers repeated the experiment with modify the width of their navigation pulses on the fly by captive bats and found the same effect, controlling for the adjusting the size of their mouth gape. The researchers possibility that they had observed a behavior tied to used an array of cameras, flashes, and ultrasonic drinking. The team writes that these changes in gape recorders to take snapshots of bats while they swooped allow the animals to “zoom in” on their view of an area, down to take a sip at a desert pond in Israel. As the bats potentially reducing the amount of distracting echoes in a descended toward the confined banks of the pond, they tight space opened their mouths wider to more tightly focus their sound pulses. As the bats left, they narrowed their
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Korean Bats Phil Gould and Becky Nesbitt have been keeping alive the bat group tradition of going to marvellous places to see bats. Phil offered to write an article, but forgot, so Becky wrote this in the second half of the recent sonogram workshop. Photos by Phil
This February Phil and I had an unexpected bat encounter when visiting Jeju, an island off the south coast of Korea. Jeju is a popular holiday destination for Koreans, whilst remaining largely undiscovered by European tourists, and it has beautiful scenery and an interesting, if troubled, history. A period of hardship began in 1910 when Korea was annexed by Japan (and it is clear from Jeju residents that tensions still run high between Japan and Korea). During WWII the Japanese believed they were at risk of an attack by the allied forces, and that Jeju was strategically placed to fend off the enemy. In preparation for the attack they built an airfield and underground fortresses. The invasion never came, and when Japan surrendered the tunnels were free for the bats.
On our second day we visited the Japanese airfield in south west Jeju, next to the extinct volcano Songaksan. Some of these underground tunnels are natural, while the ones at the airfield are manmade and extensive. We’d been warned that there might be bats in the tunnels so we came prepared with torches. The tunnels didn’t disappoint – we hadn’t got far in before we saw our first bats. Greater horseshoes (Rhinolophus ferrumequinum) Photo Bottom right) were hanging on their own or in small groups, looking ready to be extras in a haunted house film with their wings wrapped around them. The largest group of greater horseshoes was around 50 bats.
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Individual common bent-winged to the sun, with February weather in international school on the island. If bats (also known as Schreiber’s long- Korea being pretty similar to the UK, anyone is interested in exploring the fingered bat, Miniopterus schreibersii) and we even had snow chains on the area themselves, we’re very happy to were also clearly visible.( Photo top car on our first night. The main offer some tips. right). Pleased with our success in purpose of our visit was to visit my the main tunnel, we began to explore parents, who work in an Becky Nesbitt side tunnels, often climbing over piles of gravel which partly blocked their entrances. We had been prepared for bats but not for the huge number of hibernating Myotis sp. – 950 in a single group. (see photo on the right). We are yet to identify species, but one was ringed so we are hopeful of getting in touch with a local bat group who may be able to help us. We returned to the tunnels a couple of days later to undertake a more complete “survey” of the bats present, in the hope that we can pass on the information to someone who will take note of the importance of the tunnels. The trip was by no means an escape
The mystery of the bat that didn’t fly in the night
residence, so we hope they will be Does Jonathan Durward Regular readers will know that the back next year. common pipistrelles at John and Ann ever work?* Adams’ like to play hard to get. In Ann and John have seen a few bats recent years we have got the better of flying in the garden, but only one has Jonathan Durward has been on them by scheduling two dates and been seen emerging from the roost. another bat expedition to Xios in they have always arrived before the May. Most of the photos I saw were second of these. of him walking on sandy beaches or eating at tavernas, but they did catch But this year they had got wise to us. some bats. I quote from Martyn They didn’t turn up in time, for the Cook’s facebook page: first date which we were going to use to let folk finishing their class 2 “After 3 nights trapping the island licence to practice hand netting. The list is now: Gt Horseshoe (Rh.fer), second date was too near giving Lesser Horseshoe (Rh.hip), Blasius birth for us to risk hand netting, but Horseshoe (Rh.bla), Lesser Mouse- they outwitted us again and hadn’t eared (My.bly). Geffroys (My.ema), turned up by then either,. depriving Common Pip (Pi.pip), Kuhls Pip us of a jolly evening watching bats (Pi.kuh), Balkan Long-eared (Pl.kol) and eating cake. and Schriebers (Mi.sch). Also on detectors Mediterranean Horseshoe To the bats - If you are reading this, (Rh.eur) and European Free-tail we promise not to try again ladies. (Ta.ten), Savi's pipistrelle and Please give John and Ann a good Serotine.” display, safe in the knowledge that the rest of won’t be gawping. This is *Yes very hard, so these breaks the latest they have ever been in are well deserved Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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At last - sonograms from out from the detector to the phone, With the audio of our detector and the second an app that can be feeding into our phone all we now an inexpensive bat used on the smartphone for free, or need is an application to view it on. detector. All you need is a smartphone and about twenty quid.
There has been a lot of development of bat detectors which show a screen display of sonograms, but they are far from inexpensive. If you have a limited budget help is at hand. Tom August has posted a blog and video on the BCT website. Angie Cornwell has bought the necessary bits and pieces and is very pleased with the results. So I am reproducing the at a low cost. Whilst powerful, While the cable will work for a article here for other who have a smartphones cannot sample audio at variety of phones there is currently limited budget a high rate (only up to ~48kHz), so no good app that works across this solution works best with platforms. It is worth having a look “In an age where you can live most frequency division and time around to see what apps are out of your life via your smartphone it is expansion output. Using a BatBox there but at the time of writing I perhaps surprising that there is little Duet as an example the first step is to would suggest Spectrum view [4] for in the way of bat survey tools. Whilst take the left channel (frequency iPhones and Spectral Audio there are a number of applications in division) from the audio out, this is Analyzer on Android [5]. Both are the pipe line I found it frustrating done using a stereo to mono splitter free but have a premium versions for that there was no cheap way to [1]. Next, smartphones are setup to about £5 ($7.50). visualise sonograms in the field accept microphone input through [4] MAC: SPECTRUM VIEW using my smartphone. After all, such their headphone jacks, but they [5] ANDROID: SPECTRAL VIEW a task is well within the expect this to come from an computational capacity of even the unpowered microphone, to attenuate I would recommend upgrading to low end smartphone, and would be a the power that the phone tries to the premium version of both apps as valuable identification and public send to the microphone we use an the cost is minimal and the engagement tool in the field. There attenuation cable. We can get a cable additional functionality is well worth are already some products on the that at the same time converts our it. So there it is, in total my setup cost market designed to interface a bat audio connector into an audio and £25 ($37) including postage and the detector and smartphone but these microphone connector suitable for premium app. Check out the video come at a significant cost. No doubt plugging into a smartphone [2]. for a demo of how to put together the it will not be long before cheap apps Finally we need a short connector set up and use the two apps I and appropriate connecting cables that connects these two previous mention, I cover using an iPhone, are designed and commercialised, cables together [3] iPad (both using iOS) and a Moto G but in the meantime I took on the (running Android” task of connecting my bat detector to Here is the summary of the cables, The blog is at my phone for as low cost as possible. remember, there are likely to be http://batconservationtrust.blogspot. After a couple of days I was able to many suppliers of these components co.uk/ and was posted on May 16th. create a setup that cost around £15 and some may be better or cheaper There is a link to a useful You Tube ($22) that connects my iPhone to my than the ones I link to. demonstration too. - BatBox Duet. This allowed me to http://batconservationtrust.blogspot. https://youtube/W0gMvyMU0PY visualise calls in real-time, record co.uk/ Hedj Dolman is investigating and review calls, and even share [1] Stereo to mono: Maplin - £2.79 whether it is possible to do this them on social media. Here’s how. [2] Attenuating cable: Ebay - – £8.99 wirelessly. [3] 3.5mm male coupler: Amazon - This solution has two components, £3.04 Tom is keen to get feedback if you first is a cable that can take the audio try this, Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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Fly by Nights But bats manage to catch their Bats are more careful in their targeted prey despite poor weather movements at night than during the conditions. Nadav Bar, an associate day, and they are always at the ready professor at the Norwegian to change direction quickly to avoid University of Science and impending danger. Bats also have Technology's Department of the very useful navigational ability to Chemical Engineering has recently measure how fast the flight angle is researched how this is possible. changing as they approach their targeted prey. "Bats are able to filter out the ambient noise around them using "A Sensory-Motor Control Model of low-pass filtering. Useless sounds are Animal Flight Explains Why Bats Fly cleared out, which makes conditions Differently in Light Versus Dark." When echolocating, noise from rain, more transparent. The bat also has a PLOS Biology. Published: January 28, wind and snow disrupts echo highly developed sensorimotor 2015 DOI: signals, making it harder for the bat system, which controls the mammal's 10.1371/journal.pbio.1002046 to form a picture of its surroundings. movements. These characteristics The bat's big night-time movements enable the bat to move quickly and Read more at: also generate sound that disturbs the with incredible precision," says Bar. http://phys.org/news/2015-06- echo signals. prey.html#jCp. There is a video of some bats in flight here.
Roost Visitor Training to do work in the field).. Roost visitor training is demanding and takes Danny Fellman has kindly agreed to about two years to build up enough co-ordinate this so if you want to get A number experience. involved in roost visits please contact of you may Our trainer was Simon Pidgeon but him Your contact details will then be decide you he has now moved to Somerset. We given to current roost visitors who want a are hoping that there will be another can then invite you along (see page roost Trainers course, so some-one else can 20). Roost visits are often urgent so visitor’s take this over, but in the mean time, there is little scope for delaying licence. This is for those who wish to those of you who are ready to do be involved as a Natural England some roost visits will be invited to go If contacted please reply immediately volunteer. (Class 1 and 2 survey along to observe other roost visitors as if you delay some one else will be licences are of more use if you want in action. contacted.
Stop Press
Just as I was doing the final proof read of the newsletter., news came that Elaine Rigby had gained a 2;1 in Ancient History. She has been accepted on an MA ion Ancient Religions. Considerable congratulations go to her.
We first met Elaine on The Count Bat Project way back in 2007 ( and do you thinkI can find the embarrassing photo I took at the time?) and she has helped out on stalls and walk ever since4.
Photo Hedj Dollman
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the natural intensity (i.e., 10 μT; the lowest field strength tested here), the bats still responded by positioning themselves at the magnetic north. When the field polarity was artificially reversed, the bats still preferred the new magnetic north, even at the lowest field strength tested (10 μT), despite the fact that the artificial field orientation was opposite to the natural geomagnetic field (P<0.05). Hence, N. Chinese Noctule, Nyctalus plancyi plancyi is able to detect the Animal Magnetism (Vespertilionidae) can sense direction of a magnetic field even magnetic field strengths that were at 1/5th of the present-day field even lower than those of the strength. This high sensitivity to Photo from Bristol Bioacoustic lab present-day geomagnetic field. magnetic fields may explain how http://www.bio.bris.ac.uk/research/bats/ Such field strengths occurred magnetic orientation could have China%20bats/nyctalusplancyi.htm during geomagnetic excursions or evolved in bats even as the How animals, including polarity reversals and thus may Earth’s magnetic field strength mammals, can respond to and have played an important role in varied and the polarity reversed utilize the direction and intensity the evolution of a magnetic sense. tens of times over the past fifty of the Earth’s magnetic field for They found that in a present-day million years. orientation and navigation is local geomagnetic field, the bats showed a clear preference for Source contentious Dr. Tian Lanxiang and positioning themselves at the http://journals.plos.org/plosone/article?i Professor Pan Yongxin experimentally tested whether the magnetic north. As the field d=10.1371/journal.pone.0123205 intensity decreased to only 1/5th of
Borrowing equipment We have a number of Duets and recorders which can be borrowed short term. Contact Bob or Jude if you want to borrow these. We will hand them to you on surveys you A number of you have attend ( if we are going) or you can collect them from us. ( asked about We are not doing a delivery service, life is too shor)t. You borrowing may need to buy batteries. If we need them back for an equipment so event we will contact you. At the moment we have lent that you can Gwen Hitchcock a Duet and a Zoom recorder so she can carry out explore Tidddenfoot, Danny a Petterson for use on Bats investigations and Boats and Nicky Monsey has a Bedford Wood she on your own wants to explore.- watch the newsgroup for times and dates. It is bat group policy not to lend equipment to consultants but we are We also ask that you let us have any records you obtain happy to lend out equipment to members as long as you so we can add them to the database. have the experience/licence to use it.
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Common Bacterium Cures Bats' White-nose Syndrome
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A little brown bat successfully treated for white-nose syndrome is about to be released. Photo: Bat Conservation International
By Matt Miller
White-Nose Syndrome (WNS), When fruit has to be delivered caused by a fungus, has devastated Thanks to everyone who has bat populations in the eastern United thousands of miles to supermarkets – States since it first appeared here as is so often the case – it’s a race contributed to this very full almost ten years ago. An estimated against time. The fruit can ripen and issue 5.7 million bats have died, and rot before it makes it to the store’s shelves. conservationists have scrambled to In no particular order, Derek find solutions. Researchers were investigating the Smith, Tom August, Steve 75 bats released last week all had effectiveness of VOCs – emitted by Parker, Becky Nisbitt, Phil White-Nose Syndrome, and were the bacterium R. rhodochrous – in Gould, Soggy Sabiniarz, successfully treated with a common delaying ripening in fruit Geraldine and Richard Hogg, bacterium that releases Volatile Kel Robinson and Hedj Organic Compounds (VOC) with This time, the researchers grew the Dolman, Vicki Goddard, anti-fungal properties. bacterium on cobalt, which produced so-called volatile organic compounds Jennie Attwell, Andy This hopeful story may be an (VOCs) that stop the fungus, Banthorpe, Danny Fellman, Jo important first step in managing Psuedogymnoascus destructans, from Rigby, Ann Adams, Bob growing. WNS. And its scientific backstory is Cornes, Jude Hirstwood ,Lisa just as fascinating. “The amazing part about this is that King and Mick Dawson, This innovative treatment’s these compounds diffuse through the Martyn Cook, Ani Binet development began not with bats, air and act at very low Chantelle Warriner,.Joan but with bananas. concentrations, so the bats are Childs Martin O’Connor treated by exposing them to air
When researchers at Georgia State containing the VOCs (the University began research on the compounds do not need to be common bacterium Rhodococcus ‘directly’ applied to the bats),” rhodochrous they were not thinking according to a USFS press release. about bats. They were not even thinking about fungi. However, more than one chemical is created from the reaction, so the They were thinking about fruit. scientists’ next step is to isolate When bananas, peaches and other which chemical is the one that stops the fungus from growing. fruit are picked, the plants emit their With apologies to Toby Thorne’s own chemical signals. These begin whose article I have had to hold over the fruit’s ripening process. Source: http://news.discovery.com/animals/c until next time. ommon-bacterium-cures-bats-white- nose-syndrome-150515.htm Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Vol 107
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What’s On
To keep really up to date with events, follow what we do on our Facebook Bedfordshire Bat Group. A list of all this season’s regular events is in the website calendar page on the Bedfordshire Bat Group website. Other events such as some box checking and woodland surveys will be organised at shorter notice. These will Who you gonna call? Last minute appear on the newsgroup as dates are confirmed. Maps events See the newsgroup are on the website and the newsgroup. If you haven’t Membership/ Tony yet joined the newsgroup, e mail Jude and she will Sandy survey Aldhous [email protected] Newsletter send you an invite. Shaded events are not open to non 30 Park Street, Ampthill, Beds MK45 Website, members Jude 2LR Tel 01525 403951 Events Hirstwood Indoor [email protected] 9/7/15 Lakeside 20:55 meetings Mob:07951 072691 Bob 10/7/15 Priory Park bat walk 21:30 Records [email protected] Cornes 13/7/15 Stockgrove 21:00 30 Park Street, Ampthill, Beds MK45 Woodland 16//7/15 Bob 2LR Tel 01525 403951 HOCP 21:10 surveys (Mid Cornes [email protected] 19/7/15 King’s Wood box survey 9:00 Beds) Mob 07845 232430 23/7/15 Lakeside 20:45 Soggy Bat Care 26/7/15 HOCP box survey 11:00 Sabiniarz Mob: 07870 747038 Angie 27/7/15 Stockgrove 20:50 Stockgrove 07923 261565 Cornwell Mob: 5/8/15 Ampthill Park bat walk 20:30 Lakeside 1/8/15 Stall at Anglian Wolf 10.00 Survey Soggy Bat Care Co- Sabiniarz Mob: 07870 747038 6/8/15 Lakeside 20:10 ordinator 7/8/15 Priory Park bat walk 20:30 Dick and The Luton Geraldine 10/8/15 Stockgrove 20:30 survey 01582 414057 Hogg 12/8/15 Luton survey Harrold Odell 13/8/15 HOCP bat walk Woodland Kelly 07903 756477 15/8/15 Greater Stockgrove Bat Map 14:00/17:00 surveys & Robinson 16/8/15 weekend 19:15 Box checks [email protected] (Bedford) 20/8/15 Lakeside 19:45 Priory events 21/8/15 Nathusius survey with BNHS 19:30 Bats in Boats River Ouse 23/8/15 HOCP box survey 11:00 Danny survey. 28/8/15 Fellman Priory Park bat walk 20:00 Roost visitor [email protected]. (Chair) 3/9/15 Lakeside 19:15 training 7/9/15 Stockgrove 19:25 admin
7/9/15 Sandy Warren 19:45 Bat Map Jude & See above 11/9/15 Priory Park bat walk 19:30 weekend Bob 11-13/9/15 National Bat Conference
17/9/15 Lakeside 18:45 List of contributors on page 19 I ran out of space 20/9/15 King’s Wood box survey 9:00 21/9/15 Stockgrove 18:55 27/9/15 HOCP box survey 11:00 Printed by Fidelity Printers Unit 24 Station Road Ind. Est. Ampthill, Bedfordshire MK45 2QY. 01525 300 001 5/10/15 Survey/project leaders’ meeting 19:30 www.fidelityprint.co.uk/ 12/10/15 Committee meeting 19:30 18/10/15 King’s Wood box survey 9:00 25/10/15 HOCP box survey 11:00
Bats in Beds The newsletter of the Bedfordshire Bat Group July 2015 Volume 107