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Articles 391 - 420 of 797
Full-Text Articles in Ornithology
Wpa News 79 (2007), World Pheasant Association
Wpa News 79 (2007), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Summer 2007), number 79
Published by the World Pheasant Association
Grouse Status Survey And Conservation Action Plan, 2006-2010, Ilse Storch, Iucn Species Survival Commission, Grouse Specialist Group, World Pheasant Association
Grouse Status Survey And Conservation Action Plan, 2006-2010, Ilse Storch, Iucn Species Survival Commission, Grouse Specialist Group, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Executive Summary
Grouse have long attracted and fascinated people. Their display behaviour, and particularly their traditional communal mating grounds or "leks,” have inspired poetry and folklore as well as scientific theories on sexual selection and the evolution of mating systems. In many parts of their range, grouse hunting still plays a major role in the culture, economy, and subsistence of local communities.
The 2006-2010 Grouse Action Plan provides an overview to the distribution, status and threats to all 18 grouse species worldwide and identifies the most immediate conservation needs. It is a product of the joint expertise of the Grouse …
Annual Review Of The World Pheasant Association 2006/2007, World Pheasant Association
Annual Review Of The World Pheasant Association 2006/2007, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Chairman of Trustees' report, G. R. (Dick) Potts
Treasurer's report for the year ended April 30, 2007, J. A. Sampson
Welcome, Philip J. K. McGowan
Report from the European Conservation Breeding Group, John Corder
Specialist groups: Global networks of technical excellence
WPA around the world: Highlights from the chapters
The studbook for the Edwards' pheasant Lophura edwardsi: 15 years on, Alain Hennache
Key findings from the 2006 annual species surveys in WPA-UK, WPA-Germany and WPA-France, Dick Potts and Simon Mayes
Neotropical quail researchers meet in Veracruz, Mexico, Juan Cornejo and Jack Eitniear
WPA's human legacy: Teaching and learning on …
First Records And First Proven Breeding Of Lesser Grey Shrike, Lanius Minor, In Mongolia, Markus Deutsch, Axel Bräunlich
First Records And First Proven Breeding Of Lesser Grey Shrike, Lanius Minor, In Mongolia, Markus Deutsch, Axel Bräunlich
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
During a trip to the Dzungarian Gobi in southwestern Mongolia, a group of German birdwatchers found several territorial lesser grey shrikes, Lanius minor, and documented an active nest. The species had not previously been recorded from Mongolia. Observations were made near Bulgan gol (Bulgan river; nest coordinates: 46°6’N 91°32’E, 1190 m a.s.l.) in Khovd aimag (Khovd province) on June 24, 2006. Besides two territorial pairs, of which a female could be photographically documented on the nest, at least four more territorial adults were found within an area of about 1.5 km2. Based on these records, an abundance …
Biodiversity In Space And Time: Towards A Grid Mapping For Mongolia, Michael Stubbe, Annegret Stubbe, Henrik Von Wehrden, Nayamsuren Batsaikhan, Ravčigijn Samjaa
Biodiversity In Space And Time: Towards A Grid Mapping For Mongolia, Michael Stubbe, Annegret Stubbe, Henrik Von Wehrden, Nayamsuren Batsaikhan, Ravčigijn Samjaa
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In the future, grid mapping of animal and plant organisms will also play a major role in Mongolia. Based on geographical coordinates, a grid with a resolution of 100 x 100 km was created, which contained 561 cells. Methods and level of current understanding are exemplified by means of two raptors and three mammal species. This establishes a basis for an initial project, which will summarize all breeding occurrences of raptors based on all records, publications, or diary notes. For the first time, the short toed eagle was verified in Mongolia as a breeding bird in 2004. By 2006, ten …
Boletín De Grupo De Especialistas En Crácidos 23-28 (2007-2009), Iucn, Birdlife International, Cracid Specialist Group
Boletín De Grupo De Especialistas En Crácidos 23-28 (2007-2009), Iucn, Birdlife International, Cracid Specialist Group
Galliformes Specialist Group and Affiliated Societies: Newsletters
Volume 23 (Spring 2007)
Registros de anidamiento del pavo de cacho (Oreophasis derbianus) en el Volcan Atitlán, Guatemala, Knut Eisermann, Andy Burge, y Gerardo López
Registros de ninhos de Oreophasis derbianus no Vulcão Atitlan, Guatemala, Knut Eisermann, Andy Burge, e Gerardo López
Nesting records of horned guan (Oreophasis derbianus) on Atitlán Volcano, Guatemala, Knut Eisermann, Andy Burge, and Gerardo López
El redescubrimiento de la chachalaca de la Isla Utila (Ortalis vetula deschauenseei), Sheri L. Glowinski
Redescoberta do aracuã da Ilha Utila (Ortalis vetula deschauenseei), Sheri L. Glowinski
Rediscovery of the Utila Island …
Wpa News 78 (2007), World Pheasant Association
Wpa News 78 (2007), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2007), number 78
Published by the World Pheasant Association
Wpa News 80 (2007/2008), World Pheasant Association
Wpa News 80 (2007/2008), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2007/2008), number 80
Published by the World Pheasant Association
4th International Galliformes Symposium (October 14-21, 2007 : Gengdu, Sichuan, China): Abstracts, World Pheasant Association
4th International Galliformes Symposium (October 14-21, 2007 : Gengdu, Sichuan, China): Abstracts, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Conference Proceedings
Introduction
Scientific programme committee chairman's introduction, Stephen J. Browne
Conserving Asia's Galliformes: Progress and challenges, Philip J. K. McGowan
An introduction to research and conservation of China's Galliformes, Zhang Zhengwang and Zheng Guangmei
China talks: session 1
Conservation hotspots and gap analysis of Galliformes in China, Ding Changqing, Zhang Cheng’an and Philip J. K. McGowan
Roosting behavoiur of buff-throated partridge Tetraophasis szechenyii, Xu Yu, Ran Jianghong, Zhou Xin, Yang Nan, Yue Bisong, and Wang Ying
A study of the genetic structure and molecular phylogeography of the Tibetan snowcock Tetraogallus tibetanus in Qinghai-Tibetan Plateau, An Bei, Zhang Lixun, Ruan Luzhang, …
Habitat Characteristics Of Spring Blackbird Roosts In East-Central South Dakota, H. Jeffrey Homan, Richard S. Sawin, George M. Linz, William J. Bleier
Habitat Characteristics Of Spring Blackbird Roosts In East-Central South Dakota, H. Jeffrey Homan, Richard S. Sawin, George M. Linz, William J. Bleier
The Prairie Naturalist
In the northern Great Plains, blackbirds (Icteridae) roost almost exclusively in emergent-dominated wetlands. The physical characteristics of wetland roosts are not well understood. From March 20 to April 20, 1999, we studied 16 wetlands used as blackbird roosts in east-central South Dakota. Six wetlands had major roosts (range: 102,000-298,000 blackbirds); whereas, 10 wetlands had minor roosts (range: 2,010-34,000 blackbirds). Maximum roost size was correlated directly with emergent vegetation area (P = 0.05) and possibly with wetland basin area (P ≤ 0.10). Water depths were greater at used sites within wetlands of major roosts (median = 44 cm) than …
Wpa News 77 (2006), World Pheasant Association
Wpa News 77 (2006), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Summer 2006), number 77
Published by the World Pheasant Association
Christmas Bird Counts For North Dakota 2005, Robert N. Randall
Christmas Bird Counts For North Dakota 2005, Robert N. Randall
The Prairie Naturalist
Twenty areas were included in the North Dakota Christmas Bird Counts. One area that had been included during the previous four years was canceJled due to extreme icy conditions and could not be rescheduled.
There were 216 observers in the field and 41 additional participants counting the birds, which visited their feeders. The field observers were out for about 522.25 hours, 109.75 on foot and 412.5 in cars. Feeder watchers added 97.5 hours to the total. The field observers covered 121.2 miles on foot and 5,648.7 miles in vehicles. Some additional effort was spent in six of the areas where …
Book Reviews: Raptors In Your Pocket: A Guide To Great Plains Birds Of Prey; Dakota Flora: A Seasonal Sampler; The National Grasslands, Paul M. Konrad, Bonnie Heidel, F. L. Knopf
Book Reviews: Raptors In Your Pocket: A Guide To Great Plains Birds Of Prey; Dakota Flora: A Seasonal Sampler; The National Grasslands, Paul M. Konrad, Bonnie Heidel, F. L. Knopf
The Prairie Naturalist
Reviews of:
Raptors in Your Pocket: A Guide to Great Plains Birds of Prey, Dana Gardner, 2006, University of Iowa Press, 16 pages (laminated).
Dakota Flora: A Seasonal Sampler, David J. Ode, 2006, South Dakota State Historical Society Press, Pierre, South Dakota, 260 pages.
The National Grasslands, Francis Moul, 2006, University of Nebraska Press, Lincoln, Nebraska, 153 pages.
Brood Break-Up And Juvenile Dispersal Of Lesser Prairie-Chicken In Kansas, James C. Pitman, Brent E. Jamison, Christian A. Hagen, Robert J. Robel, Roger D. Applegate
Brood Break-Up And Juvenile Dispersal Of Lesser Prairie-Chicken In Kansas, James C. Pitman, Brent E. Jamison, Christian A. Hagen, Robert J. Robel, Roger D. Applegate
The Prairie Naturalist
Natal dispersal is critical for genetic interchange between subpopulations of birds and little is known about the timing and extent of lesser prairiechicken (Tympanuchus pallidicinctus) dispersal movements. We monitored movements of 51 transmitter-equipped female lesser prairie-chicken known to have hatched a nest. Average minimum daily brood movements differed (t = -2.94, df = 829, P < 0.01) between the early (273 m; 0 to 14 days post-hatch) and late (312 m; 15 to 60 days post-hatch) brood rearing periods. We captured 71 juvenile lesser prairie-chicken from 10 broods at 3 to 11 days post-hatch and marked them with passive integrated transponder (PIT) tags. We subsequently captured 41 chicks from 20 different broods and fitted them with necklace-style transmitters. Transmitter- equipped brood hens and individual chicks were monitored daily and the average date of brood break-up was September 13 (85 to 128 days post-hatch). Both males and females exhibited bimodal dispersal movements in the fall and spring. Autumn dispersal movements peaked between late October and early November for both sexes. Spring dispersal movement of males peaked during late February. Female dispersal movements in the spring peaked in late March and were much more extensive than fall dispersal movements. Natal dispersal distance for all marked males averaged 1.4 km (SE= 0.2, n = 9). The approximate dispersal distances of three transmitter-equipped females ranged from 1.5 to 26.3 km. Because of greater dispersal distances, females will contribute more to genetic exchanges between fragmented subpopulations. To ensure genetic connectivity, we recommend that a distance of less …
Fire History, Passerine Abundance, And Habitat On A North Dakota Drift Plain Prairie, Timothy J. Ludwick, Robert K. Murphy
Fire History, Passerine Abundance, And Habitat On A North Dakota Drift Plain Prairie, Timothy J. Ludwick, Robert K. Murphy
The Prairie Naturalist
Prescribed fire is among key tools for restoring and managing prairies in the northern Great Plains, yet there are no published reports of its impacts on grassland passerine birds on native prairie in the Drift Plain, a major physiographic subregion. We examined relationships between prescribed fire history and abundance and habitat of breeding passerines in Drift Plain prairie at Des Lacs National Wildlife National Refuge in northwestern North Dakota. In 2003, we used point counts (n = 79 75 m radius plots) to survey bird abundance on 16 management units that had been prescribe-burned one to three times each …
Estimates Of Breeding Bird Populations In The Sheyenne National Grassland, North Dakota, Mary Ann Cunningham, Douglas Johnson, Daniel N. Svingen
Estimates Of Breeding Bird Populations In The Sheyenne National Grassland, North Dakota, Mary Ann Cunningham, Douglas Johnson, Daniel N. Svingen
The Prairie Naturalist
We conducted a two-year survey of breeding birds in the Sheyenne National Grassland, North Dakota, to estimate total populations of breeding birds. The Grassland is of interest because it provides wildlife habitat and recreational birding opportunities. Indicated breeding pairs were counted on 100-m wide belt transects during morning surveys from late May to early July in 2002 and 2003. We surveyed approximately 6 to 7% of the Grassland each year. The most abundant species in both years were grasshopper sparrow (Ammodramus savannarum), red-winged blackbird (Agelaius phoeniceus), claycolored sparrow (Spizella pallida), Savannah sparrow (Passerculus …
Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain
Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain
The Prairie Naturalist
Low nest success rates in the Prairie Pothole Region are attributed mainly to changes in the predator community coupled with reductions in availability of suitable nesting cover. We evaluated effects of removal of mammalian predators on pair density and nest success of ducks nesting on 259 ha sites in northeastern North Dakota during 2001 and 2002. We monitored pair density and duck nests on 10 sites with removal and 10 sites without removal. Overall nest success for both years was greater on trapped (53.4%) than nontrapped sites (28.7%). Pair densities were not affected by predator removal, but did increase across …
Conserving Cracids: The Most Threatened Family Of Birds In The Americas, Daniel M. Brooks
Conserving Cracids: The Most Threatened Family Of Birds In The Americas, Daniel M. Brooks
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Preface, Russell Mittermeier
Foreword, Stuart D. Strahl
Biology and Conservation of Cracids, Daniel M. Brooks and Richard A. Fuller
- Introduction
- The natural history of cracids
- Why are iracids important
- Threats to the survival of cracids
- Conservation actions for cracids
Methods, Daniel M. Brooks and Stuart D. Strahl
Extinct in the Wild and Critically Endangered
- Alagoas curassow (Mitu mitu), Carlos A. Bianchi
- White-winged guan (Penelope albipennis), Fernando Angulo Pratolongo, Víctor Raúl Díaz, Rob Williams, and Laura Cancino
- Trinidad piping-guan (Aburria pipile), Floyd E. Hayes
- Horned guan (Oreophasis …
Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop
Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop
Galliformes Specialist Group and Affiliated Societies: Newsletters
Issue 31 (May 2006)
Editorial 2 From the Chair 2 Research Reports Capercaillie as a tool of forest planning and as an indicator of forest environment quality 4 A Study of Caucasian black grouse Tetrao mlokosiewiczi population dispersion confined in Iran 5 A habitat and habitat-connectivity model for capercaillie Tetrao urogallus in the Black Forest as a tool for sustainable conservation planning (a PhD project in progress) 9 Clarifying the Status of the Caucasian black grouse Tetrao mlokosiewiczi – methodical approach 11 Could competition with ungulates be a limiting factor for Cantabrian capercaillie? A new Ph.D. project 15 Current status …
Wpa News 76 (2006), World Pheasant Association
Wpa News 76 (2006), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2006), number 76
Published by the World Pheasant Association
Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association
Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Chairman of Trustees' report, G. R. (Dick) Potts
Treasurer's report for the year ended April 30, 2006, J. A. Sampson
Responding to UK Government consultations affecting captive stocks, Dick Potts and Simon Mayes
Specialist Groups: Global networks of technical excellence
WPA around the world: highlights from the chapters
Does the Blyth's tragopan have a future in captivity? Michel Saint Jalme and Sophie Chavanne
Cheer pheasant conservation summit in Kathmandu, Peter J. Garson and Hem S. Baral
Making forests more sustainable in Palas Valley, District Kohistan, Pakistan, Rab Nawaz
Key findings from the 2005 annual species surveys in UK and Germany, …
Rainwater Basin Wetland Management District Bird List, U.S. Fish & Wildlife Service
Rainwater Basin Wetland Management District Bird List, U.S. Fish & Wildlife Service
United States Fish and Wildlife Service: Publications
The Rainwater Basin of south central Nebraska has attracted millions of migratory birds each spring for generations. During migration, millions of snow geese, Canada geese, white-fronted geese, ducks, and 1/2-million sandhill cranes use the Rainwater Basin and the adjacent Platte River. The shallow wetland basins and surrounding croplands of the area provide the birds with critical resting and feeding sites during their migration north. The Waterfowl Production Areas (WPAs) of the Rainwater Basin Wetland Management District (WMD) are managed as grassland-playa lake ecosystems. The Rainwater Basin WMO staff currently manages 59 WPAs in the Rainwater Basin. Most of the WPAs …
Wpa News 75 (2005), World Pheasant Association
Wpa News 75 (2005), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Summer 2005), number 75
Published by the World Pheasant Association
Use Of Wading Birds As Indicators Of Potential Whooping Crane Wintering Habitat, Dawn A. Sherry, Felipe Chavez-Ramirez
Use Of Wading Birds As Indicators Of Potential Whooping Crane Wintering Habitat, Dawn A. Sherry, Felipe Chavez-Ramirez
Proceedings of the North American Crane Workshop
A search for suitable wintering sites on which to establish another migratory population of whooping crane (Grus americana) has been conducted and will continue. In addition to an evaluation of food availability for whooping cranes, wading birds that overlap highly in patterns of habitat utilization with whooping cranes may be useful as indirect indicators of suitable whooping crane habitat. We determined the extent to which several species of wading birds overlap in patterns of habitat utilization with whooping cranes on their current wintering grounds. We conducted aerial surveys of whooping cranes and wading birds at Aransas and Matagorda …
Patterns Of Relationships Among Whooping Crane Fitness, Blue Crab Abundance, And Freshwater Inflows: An Exploratory Assessment Of Available Data Sets, Felipe Chavez-Ramirez
Patterns Of Relationships Among Whooping Crane Fitness, Blue Crab Abundance, And Freshwater Inflows: An Exploratory Assessment Of Available Data Sets, Felipe Chavez-Ramirez
Proceedings of the North American Crane Workshop
This paper evaluates the possible relationships of whooping crane (Grus americana) fitness parameters to blue crab abundance and freshwater inflows based on independently gathered data sets from several agencies between 1978 and 1999. I ordered all possible analysis models into two separate types based primarily on implied relationships. The 1st order exploratory relationship models were those where evaluated parameters were potentially affected by freshwater inflows, such as salinity and blue crab abundance. The 2nd order exploratory relationship models evaluated parameters that could, more directly, have potential affects on whooping crane fitness parameters for which there was data available. Freshwater inflow …
Do Arctic-Nesting Geese Compete With Sandhill Cranes For Waste Corn In The Central Platte River Valley, Nebraska?, Gary L. Krapu, David A. Brandt, Robert R. Cox Jr.
Do Arctic-Nesting Geese Compete With Sandhill Cranes For Waste Corn In The Central Platte River Valley, Nebraska?, Gary L. Krapu, David A. Brandt, Robert R. Cox Jr.
Proceedings of the North American Crane Workshop
Numbers of arctic-nesting geese staging in spring in the Central Platte River Valley (CPRV) of southcentral Nebraska increased dramatically from the 1970s to the 1990s, raising concerns that geese may be competing with the mid-continental population of sandhill cranes (Grus canadensis) for waste corn. From late February to mid-April 1998-2001, we measured temporal patterns of cropland use, evaluated habitat preferences, and compared numbers of geese using the primary crane-occupied parts of the CPRV area with numbers of sandhill cranes. Numbers of Canada geese (Branta canadensis), lesser snow geese (Chen caerulescens)/ Ross’ geese (Chen …
Greater Sandhill Crane: Research And Management In California Since 1978, Ronald W. Schlorff
Greater Sandhill Crane: Research And Management In California Since 1978, Ronald W. Schlorff
Proceedings of the North American Crane Workshop
The greater sandhill crane (Grus canadensis tabida) was added to the California list of threatened species in 1983, and the subspecies has been the subject of research and management actions instituted by the California Department of Fish and Game (hereafter Department). Since 1978, the Department has conducted research and recovery actions including periodic breeding ground and wintering area studies, population monitoring, participated in developing Pacific Flyway crane management plans, acquisition and management of key habitats on breeding and wintering grounds, and developed a draft greater sandhill crane recovery strategy. These tasks were accomplished with the assistance of crane …
Historical Notes On Whooping Cranes At White Lake, Louisiana: The John J. Lynch Interviews, 1947–1948, Gay M. Gomez, Roderick C. Drewien, Mary Lynch Courville
Historical Notes On Whooping Cranes At White Lake, Louisiana: The John J. Lynch Interviews, 1947–1948, Gay M. Gomez, Roderick C. Drewien, Mary Lynch Courville
Proceedings of the North American Crane Workshop
In May 1939 biologist John J. Lynch of the U.S. Bureau of Biological Survey conducted an aerial survey that documented the existence of a non-migratory population of whooping cranes (Grus americana) near White Lake in southwest Louisiana. Lynch found 13 cranes, including 2 pre-fledged young, confirming breeding. Lynch’s survey occurred, in part, because fur trappers and alligator hunters working in the White Lake marshes had informed the biologist of the cranes’ presence and habits. Lynch continued his contacts with these knowledgeable marsh users, and in 1947 and 1948 interviewed at least 7 individuals. In 2001, M. L. Courville, …
Whooping Crane Titers To Eastern Equine Encephalitis Vaccinations, Glenn H. Olsen, Erin Kolski, Jeff S. Hatfield, Douglas E. Docherty
Whooping Crane Titers To Eastern Equine Encephalitis Vaccinations, Glenn H. Olsen, Erin Kolski, Jeff S. Hatfield, Douglas E. Docherty
Proceedings of the North American Crane Workshop
In 1984 an epizootic of eastern equine encephalitis (EEE) virus killed 7 of 39 (18%) whooping cranes in captivity at the Patuxent Wildlife Research Center in Laurel, Maryland, USA. Since that time whooping cranes have been vaccinated with a human EEE vaccine. This vaccine was unavailable for several years, necessitating use of an equine vaccine in the cranes. This study compared the antibody titers measured for three years using the human vaccine with those measured for two years using the equine form. Whooping cranes developed similarly elevated titers in one year using the human vaccine and both years using the …
Age, Sex, And Aggression In Florida Sandhill Cranes, Stephen A. Nesbitt
Age, Sex, And Aggression In Florida Sandhill Cranes, Stephen A. Nesbitt
Proceedings of the North American Crane Workshop
Individually directed aggressive interactions were recorded for sandhill cranes in Florida over a 9-year period. Charges and stabs were the most frequently observed aggressive behaviors. Paired adults initiated most of the encounters. Males directed 67% of aggressive interactions toward other males and 84% of female aggressive interactions were directed toward other females. The sex of initiator was significantly correlated with the sex of the receiver (P = 0.001). Paired adults directed most aggression (64.7%) toward other paired adults. Aggression initiated by subadult cranes was directed toward adults and subadults with equal frequency. The aggressiveness in males as an indicator of …