Print Version of the State of the Birds 2010
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Southwest Pacific Islands: Samoa, Fiji, Vanuatu & New Caledonia Trip Report 11Th to 31St July 2015
Southwest Pacific Islands: Samoa, Fiji, Vanuatu & New Caledonia Trip Report 11th to 31st July 2015 Orange Fruit Dove by K. David Bishop Trip Report - RBT Southwest Pacific Islands 2015 2 Tour Leaders: K. David Bishop and David Hoddinott Trip Report compiled by Tour Leader: K. David Bishop Tour Summary Rockjumper’s inaugural tour of the islands of the Southwest Pacific kicked off in style with dinner at the Stamford Airport Hotel in Sydney, Australia. The following morning we were soon winging our way north and eastwards to the ancient Gondwanaland of New Caledonia. Upon arrival we then drove south along a road more reminiscent of Europe, passing through lush farmlands seemingly devoid of indigenous birds. Happily this was soon rectified; after settling into our Noumea hotel and a delicious luncheon, we set off to explore a small nature reserve established around an important patch of scrub and mangroves. Here we quickly cottoned on to our first endemic, the rather underwhelming Grey-eared Honeyeater, together with Nankeen Night Herons, a migrant Sacred Kingfisher, White-bellied Woodswallow, Fantailed Gerygone and the resident form of Rufous Whistler. As we were to discover throughout this tour, in areas of less than pristine habitat we encountered several Grey-eared Honeyeater by David Hoddinott introduced species including Common Waxbill. And so began a series of early starts which were to typify this tour, though today everyone was up with added alacrity as we were heading to the globally important Rivierre Bleu Reserve and the haunt of the incomparable Kagu. We drove 1.3 hours to the reserve, passing through a stark landscape before arriving at the appointed time to meet my friend Jean-Marc, the reserve’s ornithologist and senior ranger. -
Avifauna from the Teouma Lapita Site, Efate Island, Vanuatu, Including a New Genus and Species of Megapode
Archived at the Flinders Academic Commons: http://dspace.flinders.edu.au/dspace/ ‘This is the peer reviewed version of the following article: Worthy, T., Hawkins, S., Bedford, S. and Spriggs, M. (2015). Avifauna from the Teouma Lapita Site, Efate Island, Vanuatu, including a new genus and species of megapode. Pacific Science, 69(2) pp. 205-254. which has been published in final form at DOI: http://dx.doi.org/10.2984/69.2.6 Article: http://www.bioone.org/doi/full/10.2984/69.2.6 Journal: http://www.uhpress.hawaii.edu/t-pacific-science Copyright 2015, University of Hawaii Press. Published version of the article is reproduced here with permission from the publisher." Avifauna from the Teouma Lapita Site, Efate Island, Vanuatu, Including a New Genus and Species of Megapode1 Trevor H. Worthy,2,5 Stuart Hawkins,3 Stuart Bedford,4 and Matthew Spriggs 4 Abstract: The avifauna of the Teouma archaeological site on Efate in Vanuatu is described. It derives from the Lapita levels (3,000 – 2,800 ybp) and immedi- ately overlying middens extending to ~2,500 ybp. A total of 30 bird species is represented in the 1,714 identified specimens. Twelve species are new records for the island, which, added to previous records, indicates that minimally 39 land birds exclusive of passerines were in the original avifauna. Three-fourths of the 12 newly recorded species appear to have become extinct by the end of Lapita times, 2,800 ybp. The avifauna is dominated by eight species of columbids (47.5% Minimum Number Individuals [MNI ]) including a large extinct tooth- billed pigeon, Didunculus placopedetes from Tonga, and a giant Ducula sp. -
Bird Checklists of the World Country Or Region: Myanmar
Avibase Page 1of 30 Col Location Date Start time Duration Distance Avibase - Bird Checklists of the World 1 Country or region: Myanmar 2 Number of species: 1088 3 Number of endemics: 5 4 Number of breeding endemics: 0 5 Number of introduced species: 1 6 7 8 9 10 Recommended citation: Lepage, D. 2021. Checklist of the birds of Myanmar. Avibase, the world bird database. Retrieved from .https://avibase.bsc-eoc.org/checklist.jsp?lang=EN®ion=mm [23/09/2021]. Make your observations count! Submit your data to ebird. -
Incubator Birds: Biogeographical Origins and Evolution Of
Journal of Biogeography (J. Biogeogr.) (2014) 41, 2045–2056 ORIGINAL Incubator birds: biogeographical origins ARTICLE and evolution of underground nesting in megapodes (Galliformes: Megapodiidae) Rebecca B. Harris1,2*, Sharon M. Birks2 and Adam D. Leache1,2 1Department of Biology, University of ABSTRACT Washington, Seattle, WA 98195, USA, 2Burke Aim Unique amongst birds, megapodes (family Megapodiidae) have exchanged Museum of Natural History and Culture, the strategy of incubating eggs with the warmth of their bodies for incubation University of Washington, Seattle, WA 98195, USA behaviours that rely entirely on environmental heat sources. Typically, mound- builders capture heat released from the decomposition of organic materials, while burrow-nesters lay their eggs in geothermal or solar-heated soils. The evolutionary path towards novel incubation behaviours has led to ecological and physiological adaptations unique to megapodes. Here, we present a species tree for all extant megapodes that settles long-standing debates about mega- pode evolution: namely, their biogeographical origins and ancestral nesting behaviour. Location Australasia. Methods A time-calibrated multilocus species tree for all extant megapodes was constructed using *beast. We estimated and compared divergence dates for megapodes obtained from molecular rates, fossils, and a combination of fossils and rates. Using this tree, Bayesian estimation of ancestral nesting behaviour was conducted in BayesTraits and ancestral ranges were estimated in BioGeoBEARS. Results Recent dispersal has led to the recolonization of mainland Australia and New Guinea by Megapodius. Bayesian estimation of ancestral states indi- cates that mound building is the most probable ancestral nesting behaviour in megapodes (posterior probability = 0.75). Burrow nesting was acquired early in the diversification of the family (at least 14 Ma), followed by a single switch back to mound building. -
Life in Cold Book
The Avian Enigma: “Hibernation” by Common Poorwills (Phalaenoptilus nuttalli) CHRISTOPHER P. WOODS AND R. MARK BRIGHAM University of Regina, Department of Biology, Regina, Saskatchewan, Canada Abstract. Common Poorwills, small nocturnal insectivorous birds found across western North America, are seemingly unique because of their alleged ability to remain torpid for extended periods during winter. We used temperature- sensitive radio transmitters to assess patterns of torpor use at sites in the Sonoran desert of southern Arizona. Poorwills used torpor extensively whenever ambient temperature (Ta) dropped below 10° C, and there was little evidence for ther- moregulation when Ta was above 5° C. During the winter months (December through February), birds remained entirely inactive on 72% of bird-nights, and continuously inactive periods of 10 days or longer were common. The extent of inactivity is similar behaviorally to that of hibernating small mammals. Roost selection, however, facilitated routine passive solar warming, and inactive birds exhibited a regular pattern of arousal on sunny days, followed by reentry into torpor at sunset. We argue that daily arousals are likely an adaptation to the circumstances that characterize surface dormancy. We hypothesize that the re- lationship between Ta and availability of flying insects at night, in combination with unique ecological aspects of arid regions, contributed to the evolution of multiday torpor use by poorwills. Introduction Amongst birds, species in 29 families representing 11 orders have been reported capable of a variety of heterothermic responses (reviewed by McKechnie and Lovegrove 2002). Most birds known to use true torpor are small-bodied special- ized foragers, and hummingbirds are the best studied of these (McNab 2002). -
Forest Bird and Fruit Bat Populations on Sarigan, Mariana Islands
Micronesica 31(2):247-254. 1999 Forest Bird and Fruit Bat Populations on Sarigan, Mariana Islands STEVEN G. FANCY1 U.S Geological Survey, Biological Resources Division, Pacific Island Ecosystems Research Center, P.O. Box 44, Hawaii National Park, HI 96718. [email protected] ROBERT J. CRAIG2 Northern Marianas College, P.O. Box 1250, Saipan, MP 96950 CURT W. KESSLER Division of Fish and Wildlife, Commonwealth of the Northern Mariana Islands, P.O. Box 10007, Saipan, MP 96950 Abstract—We conducted the first quantitative surveys of forest bird and bat populations on the uninhabited island of Sarigan, Commonwealth of the Northern Mariana Islands. Severe habitat degradation has occurred on Sarigan because of overgrazing by introduced goats and pigs. Planting of coconut palms (Cocos nucifera) for copra production has also eliminated much of the island’s native forest. We recorded five species of forest birds on Sarigan: Micronesian Honeyeater (Myzomela rubratra), Micronesian Megapode (Megapodius laperouse laperouse), Micronesian Starling (Aplonis opaca), Collared Kingfisher (Halcyon chloris), and White-throated Ground Dove (Gallicolumba xanthonura). Estimated population sizes (95% confidence interval) in 1997 were 1,821 (1,617–2,026) for Micronesian Honeyeater, 677 (545–810) for Micronesian Megapode, 497 (319–675) for Micronesian Starling, 107 (82–131) for Collared Kingfisher, and 170 (101–238) for Mariana Fruit Bat (Pteropus mariannus). Introduction The remote, uninhabited tropical Pacific island of Sarigan, Commonwealth of the Northern Mariana -
Volunteers Concerned About Nightjars Citizen Scientists That Participate In
Volunteers Concerned about Nightjars Citizen scientists that participate in the thousands of programs worldwide are often not professionally trained biologists; however, they possess a desire to contribute their free time to something that they value. Whether uploading species lists into eBird, helping to actively clean and restore wetlands, or venturing into the eve to listen for nightjars, it is understood that a personal sense of fulfillment keeps people engaged in these programs. In particular, Nightjar Network surveyors deserve an even bigger pat on the back for their efforts. For one, conducting evening work can be a bit of a grind. Additionally, seeing the bird is half the fun; so conducting a bird survey where you will likely never see the bird my not seem as satisfying. We assume you all have your own reasons for embarking on your journey with us: Whether you are the rare night owl, you feel a certain fulfillment in the act of volunteering, or you just can’t get enough of birds in the daylight hours that you must grind through the night hours in the hopes of adding one of these awesome birds to your day list! We hope you value your participation and continued support of this program as much as we do. Eleven years of Nightjar Survey Data and What’s to Come 2018 closed out our 11th (!) year conducting nightjar surveys as part of the network. Since its establishment in 2007, over 3,000 survey routes have been conducted by 646 dedicated volunteers throughout the US (Figure 1). Volunteers have included a wide range of concerned citizens from agency biologists to retired school teachers to young students - people who enjoy experiencing the night sounds while contributing to what we know about this unusual group of birds. -
Zoologische Verhandelingen
Systematic notes on Asian birds. 41. Territorial songs and species-level taxonomy of nightjars of the Caprimulgus macrurus complex, with the description of a new species G. Sangster & F.G. Rozendaal Sangster, G. & F.G. Rozendaal. Systematic notes on Asian birds. 41. Territorial songs and species-level taxonomy of nightjars of the Caprimulgus macrurus complex, with the description of a new species. Zool. Verh. Leiden 350, 26.xi.2004: 7-00.— ISSN 0024-1652/ISBN 90-73239-95-8. George Sangster, Stevenshof 17, 2312 GM Leiden, The Netherlands. (e-mail: [email protected]). Frank G. Rozendaal, Akker 113, 3732 XC De Bilt, The Netherlands. (e-mail: [email protected]). Key words: Caprimulgus macrurus; species limits; taxonomy; geographic variation; vocalizations. The Large-tailed Nightjar Caprimulgus macrurus Horsfield, 1821, complex, as currently recognized, comprises 12 taxa which are grouped into four species based on their territorial songs. However, species limits are based on very small samples of a limited number of taxa in the complex. To further document species limits in the complex, we analysed 109 sound recordings representing all recognized taxa. Principal components analysis suggests the existence of six vocally distinct groups within the complex. Discriminant function analysis assigned 98-100% of individuals correctly to their group. Each of these groups differs diagnosably from all other groups by up to eight vocal characters, and each group is recognizable by ear. We propose to treat these six groups as species based on multiple differences in territorial songs, the lack of intermediate vocal types, the concordance of the geographic distribution of vocal types and morphology-based taxonomic boundaries and the sympatry of two groups in northeastern peninsular India without signs of intergradation. -
Bird Communities of Gambel Oak: a Descriptive Analysis
United States Department of Agriculture Bird Communities Forest Service Rocky Mountain of Gambel Oak: A Research Station General Technical Report RMRS-GTR-48 Descriptive Analysis March 2000 Andreas Leidolf Michael L. Wolfe Rosemary L. Pendleton Abstract Leidolf, Andreas; Wolfe, Michael L.; Pendleton, Rosemary L. 2000. Bird communities of gambel oak: a descriptive analysis. Gen. Tech. Rep. RMRS-GTR-48. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 30 p. Gambel oak (Quercus gambelii Nutt.) covers 3.75 million hectares (9.3 million acres) of the western United States. This report synthesizes current knowledge on the composition, structure, and habitat relationships of gambel oak avian communities. It lists life history attributes of 183 bird species documented from gambel oak habitats of the western United States. Structural habitat attributes important to bird-habitat relationships are identified, based on 12 independent studies. This report also highlights species of special concern, provides recommendations for monitoring, and gives suggestions for management and future research. Keywords: Avian ecology, bird-habitat relationships, neotropical migrant, oakbrush, oak woodlands, scrub oak, Quercus gambelii, Western United States The Authors ______________________________________ Andreas Leidolf is a Graduate Research Assistant in the Department of Fisheries and Wildlife at Utah State University (USU). He received a B.S. degree in Forestry/Wildlife Management from Mississippi State University in 1995. He is currently completing his M.S. degree in Fisheries and Wildlife ecology at USU. Michael L. Wolfe is a Professor in the Department of Fisheries and Wildlife at USU. He received a B.S. degree in Wildlife Management at Cornell University in 1963 and his doctorate in Forestry/Wildlife Management at the University of Göttingen, Germany, in 1967. -
Western Birds
WESTERN BIRDS Vol. 49, No. 4, 2018 Western Specialty: Golden-cheeked Woodpecker Second-cycle or third-cycle Herring Gull at Whiting, Indiana, on 25 January 2013. The inner three primaries on each wing of this bird appear fresher than the outer primaries. They may represent the second alternate plumage (see text). Photo by Desmond Sieburth of Los Angeles, California: Golden-cheeked Woodpecker (Melanerpes chrysogenys) San Blas, Nayarit, Mexico, 30 December 2016 Endemic to western mainland Mexico from Sinaloa south to Oaxaca, the Golden-cheeked Woodpecker comprises two well-differentiated subspecies. In the more northern Third-cycle (or possibly second-cycle) Herring Gull at New Buffalo, Michigan, on M. c. chrysogenys the hindcrown of both sexes is largely reddish with only a little 14 September 2014. Unlike the other birds illustrated on this issue’s back cover, in this yellow on the nape, whereas in the more southern M. c. flavinuchus the hindcrown is individual the pattern of the inner five primaries changes gradually from feather to uniformly yellow, contrasting sharply with the forehead (red in the male, grayish white feather, with no abrupt contrast. Otherwise this bird closely resembles the one on the in the female). The subspecies intergrade in Nayarit. Geographic variation in the outside back cover, although the prealternate molt of the other body and wing feathers Golden-cheeked Woodpecker has not been widely appreciated, perhaps because so many has not advanced as far. birders and ornithologists are familiar with the species from San Blas, in the center of Photos by Amar Ayyash the zone of intergradation. Volume 49, Number 4, 2018 The 42nd Annual Report of the California Bird Records Committee: 2016 Records Guy McCaskie, Stephen C. -
Checklist of the Birds of Micronesia Peter Pyle and John Engbring for Ornithologists Visiting Micronesia, R.P
./ /- 'Elepaio, VoL 46, No.6, December 1985. 57 Checklist of the Birds of Micronesia Peter Pyle and John Engbring For ornithologists visiting Micronesia, R.P. Owen's Checklist of the Birds of Micronesia (1977a) has proven a valuable reference for species occurrence among the widely scattered island groups. Since its publication, however, our knowledge of species distribution in Micronesia has been substantially augmented. Numerous species not recorded by Owen in Micronesia or within specific Micronesian island groups have since been reported, and the status of many other species has changed or become better known. This checklist is essentially an updated version of Owen (1977a), listing common and scientific names, and occurrence status and references for all species found in Micronesia as recorded from the island groups. Unlike Owen, who gives the status for each species only for Micronesia as a whole, we give it for -each island group. The checklist is stored on a data base program on file with the U.S. Fish and Wildlife Service (USFWS) in Honolulu, and we encourage comments and new or additional information concerning its contents. A total of 224 species are included, of which 85 currently breed in Micronesia, 3 have become extinct, and 12 have been introduced. Our criteria for-species inclusion is either specimen, photograph, or adequately documented sight record by one or more observer. An additional 13 species (listed in brackets) are included as hypothetical (see below under status symbols). These are potentially occurring species for which reports exist that, in our opinion, fail to meet the above mentioned criteria. -
Meet the Megapodes – Ground-Dwelling Birds That Start Life Beneath the Sand
The Melanesian megapode has a naked face, often with red or pink coloration. It uses hot volcanic sand to incubate its eggs – an ancient behaviour now found in only a handful of bird species. THE LAVA BIRDS Meet the megapodes – ground-dwelling birds that start life beneath the sand. By Mark Cocker Photos David Tipling 32 BBC Wildlife June 2019 June 2019 MEGAPODES Clockwise from left: Megapodes excavate their nest chambers; these 550g birds can dig to impressive depths; there can sometimes be a bit of a skirmish among the birds, as they look for suitable digging spots; volcanically heated sand results in communal nest grounds; Savo Island. he sound of our boat’s New Guinea, as far as southern Australia, to a beach bordering the forest, where the engine drowned out the vast then way out into the central Pacific through megapodes lay. The locals make these sand- silence of the South Pacific the array of islands known as Melanesia. fields even more attractive for the birds by night. It was 4am and pitch Savo is among that complex of archipelagos clearing fallen debris, while a thatched fence black – the only thing I and it is no coincidence that this spot, like around the perimeter excludes predators, could see distinctly was the much of the zone in which megapodes occur, such as pigs, dogs and monitor lizards. whiteness of the breakers experiences some of the highest levels of Even as we took our seats behind the ‘blind’ Tcrashing and spreading onto the shore. seismic activity known on Earth. we could hear the megapodes in the trees We were on the Solomon Islands, at a Savo is a live volcano and the megapodes overhead, where they produced a loud, place called Savo, to see a bird that lays have probably exploited the island’s high-pitched chorus of ‘yee-yeeow’ notes.