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Articles 1531 - 1560 of 4554
Full-Text Articles in Ornithology
Whooping Crane Titers In Response To Eastern Equine Encephalitis Immunization, Glenn H. Olsen
Whooping Crane Titers In Response To Eastern Equine Encephalitis Immunization, Glenn H. Olsen
Proceedings of the North American Crane Workshop
Eastern equine encephalitis (EEE) is a viral disease caused by a vector-borne alphavirus. Various bird species, primarily native passerines in eastern North America, act as reservoir hosts without suffering clinical disease. When outbreaks occur, the disease is maintained and amplified through a mosquito-wild bird-mosquito cycle. EEE does not cause morbidity or mortality in North American passerines, but does cause mortality in some non-native birds such as pheasants (Phasianus colchicus) and emus (Dromiceius novaehollandiae) (Tengelsen et al. 2001) plus horses (Main 1979) and humans. Between September and December 1984, EEE killed 7 of 39 captive whooping cranes …
Ducks, Geese, And Swans Of The World: Tribe Cereopsini (Cape Barren Goose), Paul A. Johnsgard
Ducks, Geese, And Swans Of The World: Tribe Cereopsini (Cape Barren Goose), Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
Cape Barren Goose
Several recent studies have suggested that this unusual Australian gooselike bird is not very closely related to either the true geese or the sheldgeese, although it shares some traits with both groups. It has some unique traits, such as its unusually swollen bill, its adaptations to a terrestrial existence on the coastline and islands of the Bass Strait, and its very simple syringeal structure. Like the freckled duck, it is perhaps best considered as a survivor of a group transitional between the two major subfamilies of waterfowl that exist at the present time.
Ducks, Geese, And Swans Of The World: Tribe Anatini (Dabbling Or Surface-Feeding Ducks), Paul A. Johnsgard
Ducks, Geese, And Swans Of The World: Tribe Anatini (Dabbling Or Surface-Feeding Ducks), Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
Blue Duck ● Salvadori Duck ● African Black Duck ● Eurasian Wigeon ● American Wigeon ● Chiloe Wigeon ● Falcated Duck ● Gadwall ● Baikal Teal ● Green-winged Teal ● Speckled Teal ● Cape Teal ● Madagascan Teal ● Gray Teal ● Chestnut Teal ● Brown Teal ● Mallard ● North American Black Duck ● Meller Duck ● Yellow-billed Duck ● Gray Duck ● Philippine Duck ● Bronze-winged Duck ● Crested Duck ● Pintail ● Brown Pintail ● White-cheeked Pintail ● Red-billed Pintail ● Silver Teal ● Hottentot Teal ● Garganey ● Blue-winged Teal ● Cinnamon Teal ● Red Shoveler …
Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations, Paul A. Johnsgard
Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations, Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
Approximate 250 terms: "Amphipoda" through "Xerophytic"
The World’S Waterfowl In The 21st Century: A 2010 Supplement To Ducks, Geese, And Swans Of The World, Paul A. Johnsgard
The World’S Waterfowl In The 21st Century: A 2010 Supplement To Ducks, Geese, And Swans Of The World, Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
Since the 1978 publication of my Ducks, Geese and Swans of the World hundreds if not thousands of publications on the Anatidae have appeared, making a comprehensive literature supplement and text updating impossible. Janet Kear’s (2005) survey of the waterfowl family Anatidae and closely related screamers of the family Anhimidae included more than 3,700 references, of which a significant proportion appeared later than 1978. My revision of the Anseriformes (families Anatidae and Anhimidae) for the 2nd edition of J. C. Peters’ Check-List of the Birds of the World (Johnsgard, 1979) closely followed the classification structure and taxonomic sequence that had …
Wpa News 86 (2010/2011), World Pheasant Association
Wpa News 86 (2010/2011), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2010/2011), number 86
Published by the World Pheasant Association
Im Gedenken An Den Mongolischen Ornithologen Ajurzana Bold (1936-2007), M. Stubbe, Annegret Stubbe
Im Gedenken An Den Mongolischen Ornithologen Ajurzana Bold (1936-2007), M. Stubbe, Annegret Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Obituary of Mongolian ornithologist Ajurzana Bold (1936-2007).
Verzeichnis Der In Den „Beiträgen Zur Gefiederkunde Und Morphologie Der Vögel“ Hefte 1-14 Beschriebenen Und Der Vom Verfasser Im Übrigen Schrifttum Publizierten Federbestimmungsmerkmale Von Mongolischen Vögeln, W.-D. Busching
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
First paragraph:
Seit der ersten Mongolisch-Deutschen Biologischen Expedition im Jahre 1962 hat die Erforschung der Avifauna große Fortschritte gemacht, wobei im Zoologischen Institut der Martin Luther Universität Halle-Wittenberg, der Mongolischen Akademie der Wissenschaften und dem Biologischen Institut der Nationaluniversität der Mongolei in Ulaanbaatar umfangreiche Balgund Skelettsammlungen angelegt wurden. Nicht wenige Vogelfunde lagen aber in Form von Nahrungsresten der Greifvögel, Eulen und des Haarraubwildes vor und waren damit nur schwer anzusprechen. So gingen die aufgesammelten Rupfungen und Säugetierrisse zumeist an den Autor, in der Hoffnung, dass sie bestimmt werden können.
Waterbirds Of Uvs-Nuur Depression, T. P. Archimaeva-Ozerskaya, V. I. Zabelin
Waterbirds Of Uvs-Nuur Depression, T. P. Archimaeva-Ozerskaya, V. I. Zabelin
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This report provides an overview of water birds (Non-Passeriformes) inhabiting the lakes of Uvs- Nuur Depression. The article includeds material obtained during field work in the Uvs-Nuur Depression during 1999-2006, unpublished observations of rare vagrant species of birds, and data from the literature. Altogether we and others recorded 81 bird species from ten families on the lakes within the basin. The list we provide does not include sparrows or birds from habitats closely associated with the basin. The following non-Passeriformes bird families were noted (with the number of species in parentheses): Gaviidae (1), Podicipedidae (2), Phalacrocoracidae (1), Ardeidae (5), Anatidae …
In Memoriam, Academician Prof. Dr. Osor Shagdarsuren (1929-2010), Sundev Gombobaatar, D. Sumiya, R. Samiya, B. Bayartogtokh, S. Shar, Nyamsuren Batsajchan, M. Altantsetseg, Ch. Uuganbayar, D. Usukhjargal, P. Amartuvshin, P. Jargalsaikhan, Sh. Boldbaatar, N. Tseveenmyadag, G. Mainjargal, B. Nyambayar, E. R. Potapov, Michael Stubbe, Annegret Stubbe, Andrew Dixon
In Memoriam, Academician Prof. Dr. Osor Shagdarsuren (1929-2010), Sundev Gombobaatar, D. Sumiya, R. Samiya, B. Bayartogtokh, S. Shar, Nyamsuren Batsajchan, M. Altantsetseg, Ch. Uuganbayar, D. Usukhjargal, P. Amartuvshin, P. Jargalsaikhan, Sh. Boldbaatar, N. Tseveenmyadag, G. Mainjargal, B. Nyambayar, E. R. Potapov, Michael Stubbe, Annegret Stubbe, Andrew Dixon
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Academician, Professor Osor Shagdarsuren passed away due to apoplexy on Tuesday, February 2, 2010, at the age of 81. He was one of the most respected Mongolian ornithologists, biologists, and educators. The Mongolian scientific community has lost one of its greatest members, the premier Mongolian ornithologist.
Ecology Of Eurasian Black Vultures (Aegypius Monachus) In Ikh Nart Nature Reserve, Mongolia, Richard P. Reading, David Kenny, John Azua, Travis Garrett, Mary Jo Willis, Tsolmonjav Purevsuren
Ecology Of Eurasian Black Vultures (Aegypius Monachus) In Ikh Nart Nature Reserve, Mongolia, Richard P. Reading, David Kenny, John Azua, Travis Garrett, Mary Jo Willis, Tsolmonjav Purevsuren
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
We studied the nesting ecology and movement patterns of Eurasian black vultures (Aegypius monachus) nesting in and near Ikh Nart Nature Reserve, Dornogobi Aimag, Mongolia. From 2003 till 2009, we monitored nesting pairs from incubation to fledging and compared nesting success for pairs nesting on rocks and trees. We captured chicks just prior to fledging to apply leg bands and wing tags. We also captured adults in June and attached solar-powered global positioning system (GPS)/satellite telemetry units, leg bands, and wing tags. We collected resighting data on marked birds opportunistically and telemetry data on tagged birds. We monitored …
Brutareale Und Brutbiologie Der Greifvogelarten Der Mongolei = Grid Mapping And Breeding Ecology Of Raptors In Mongolia, Michael Stubbe, Annegret Stubbe, Nayamsuren Batsaikhan, Sundev Gombobaatar, T. Stenzel, H. Von Wehrden, Sh. Boldbaatar, B. Nayambayar, D. Sumjaa, Ravčigijn Samjaa, N. Ceveenmjadag, A. Bold
Brutareale Und Brutbiologie Der Greifvogelarten Der Mongolei = Grid Mapping And Breeding Ecology Of Raptors In Mongolia, Michael Stubbe, Annegret Stubbe, Nayamsuren Batsaikhan, Sundev Gombobaatar, T. Stenzel, H. Von Wehrden, Sh. Boldbaatar, B. Nayambayar, D. Sumjaa, Ravčigijn Samjaa, N. Ceveenmjadag, A. Bold
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
This work summarizes the longtime ecological research of the German-Mongolian scientific cooperation regarding biodiversity studies in Central Asia, focusing on native raptor species (Aves: Falconiformes). There is included a short overview on the history of raptor research in Mongolia. One of the primary goals was the creation of distribution maps of breeding records based on definitive time and space coordinates. Additional data on the breeding biology amend the distribution data. Currently 43 raptor species are recorded for Mongolia. Whenever possible were also incorporated data from adjacent regions of Mongolia (China, Tuva, Burjatia, Pribaikalia), in order to embed the avifauna of …
Do Nest Materials And Nest Substrates Affect The Breeding Of Buteo Hemilasius In The Mongolian Steppe?, Sundev Gombobaatar, B. Odkhuu, Yosef Reuvan, B. Gantulga, B. Amartuvshin, D. Usukhjargal
Do Nest Materials And Nest Substrates Affect The Breeding Of Buteo Hemilasius In The Mongolian Steppe?, Sundev Gombobaatar, B. Odkhuu, Yosef Reuvan, B. Gantulga, B. Amartuvshin, D. Usukhjargal
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Upland buzzards occur across Mongolia excluding lush taiga forest and breeds from the Mongolian Altai mountains to the western foothills of the Great Khyangan Mountains. Our field work was conducted during the breeding season of the species in Mongolia from 2001 to 2007. Nest materials of the studied nests contained natural (twigs of elm tree, shrubs, tail, and mane of horse, hair of cows, fur of sheep, goats and camels), and artificial or man-made (cotton, plastic bags, wires, cables, and others) materials. Contents of the nesting materials of the species were differed by location, region and breeding pair’s behavior. A …
Das Baikalo-Mongolische Übergangsgebiet Und Seine Bedeutung Für Die Dynamik Der Avifauna Der Baikalgrabenzone, Juri Durnev, Marina Sonina
Das Baikalo-Mongolische Übergangsgebiet Und Seine Bedeutung Für Die Dynamik Der Avifauna Der Baikalgrabenzone, Juri Durnev, Marina Sonina
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The „Baikalgrabenzone“ or Tunka valley is the area between the lake Chubsugul in the Southwest and the bassin of the river Oljekma in the Northeast. It’s an important biogeograhic region. Some bird species are immigrating from Mongolia in this area, some other species are disapeared here. In the ornithofauna can be distinguished ten types of zoogeographic origin.
The Institute For Raptor Studies Expeditions In Mongolia, 1994-2000, David H. Ellis
The Institute For Raptor Studies Expeditions In Mongolia, 1994-2000, David H. Ellis
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
In 1994, 1995, 1997, 1998, and 2000, I led small teams of biologists across Mongolia in search of Saker falcon (Falco cherrug Gray) and golden eagle (Aquila chrysaetos) eyries. We also counted raptors along our march route during the first three years. These expeditions documented: (1) occupancy and productivity rates, and described eyrie sites, for Saker falcons (150 territories, 182 eyries) and golden eagles (27 known breeding territories), (2) mortality of Sakers and ipland buzzards (Buteo hemilasius) due to entanglement with trash in nests and loss of golden eagle eggs due to concealment by trash in nests, …
Ducks, Geese, And Swans Of The World, Revised Edition [Complete Work], Paul A. Johnsgard
Ducks, Geese, And Swans Of The World, Revised Edition [Complete Work], Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
The only one-volume comprehensive survey of the family Anatidae available in English, this book combines lavish illustration with information on the natural history, distribution and status, and identification of all the species.
After an introductory discussion of the thirteen tribes of Anatidae, separate accounts follow for each of the nearly 150 recognized species. These include scientific and vernacular names (in French, German, and Spanish as well as English), descriptions of the distribution of all recognized subspecies, selected weights and measurements, and identification criteria for both sexes and various age classes. The “Natural History” section of each species account considers habitats, …
Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard
Ducks, Geese, And Swans Of The World: Tribe Merganettini (Torrent Duck), Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
Torrent Duck
This remarkable stream-dwelling duck of the Andean mountains is certainly one of the most specialized of all waterfowl, and in part its anatomical and behavioral specializations have obscured its basic relationships, which appear to be with either the perching ducks or the dabbling ducks. In the absence of definitive evidence, it seems reasonable to maintain a separate tribe for this species, which exists as a series of relatively isolated populations between Venezuela and Tierra del Fuego that vary greatly in male plumage characteristics. Torrent ducks are essentially cavity- or ledge-nesting forms, although only a few nests have been …
Ducks, Geese, And Swans Of The World: Index, Paul A. Johnsgard
Ducks, Geese, And Swans Of The World: Index, Paul A. Johnsgard
Ducks, Geese, and Swans of the World by Paul A. Johnsgard
The following index is limited to the species of Anatidae; species of other bird families are not indexed, nor are subspecies included. However, vernacular names applied to certain subspecies that sometimes are considered full species are included, as are some generic names that are not utilized in this book but which are still sometimes applied to particular species or species groups. Complete indexing is limited to the entries that correspond to the vernacular names utilized in this book; in these cases the primary species account is indicated in italics. Other vernacular or scientific names are indexed to the section of …
Waterfowl Of North America: Perching Ducks, Tribe Cairinini, Paul A. Johnsgard
Waterfowl Of North America: Perching Ducks, Tribe Cairinini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The perching ducks and related gooselike forms are a diverse array of some fourteen species that are largely subtropical to tropical in occurrence. Although they vary in size from as little as about a half a pound in the "pygmy geese" (Nettapus) to more than twenty pounds in the spur-winged geese (Plectropterus), all possess some common features.*These include a tendency toward hole-nesting, especially in trees; sharp claws; associated perching abilities; and long tails that presumably increase braking effectiveness when landing in trees. Nearly all species exhibit extensive iridescent coloration in the body, especially on the upper …
Waterfowl Of North America: Sea Ducks, Tribe Mergini, Paul A. Johnsgard
Waterfowl Of North America: Sea Ducks, Tribe Mergini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The sea ducks are a group of mostly arctic-adapted diving ducks that usually winter in coastal waters and typically breed in tundra situations or in northern forests. All twenty species (two of which are now extinct) depend predominantly on animal sources of food, and some feed exclusively on such materials. These foods include shellfish, mollusks, other invertebrates, and aquatic vertebrates such as fish. In general the sea ducks are thus not regarded as highly as table birds as are the surface-feeding ducks and some of the more vegetarian pochard species. Like the pochards, their legs are placed well to the …
Waterfowl Of North America: Black & White Photographs (Following Page 338), Paul A. Johnsgard
Waterfowl Of North America: Black & White Photographs (Following Page 338), Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Gadwall, Pair
Gadwall, Adult male
Baikal Teal, Pair
American Green-winged Teal, Pair
Baikal Teal, Adult male
American Green-winged Teal, Adult male
Common Mallard, Adult male
Common Mallard, Brooding female
Mexican Mallard, Pair
Florida Mallard, Pair
Northern Pintail, Adult male
Bahama Pintail, Adult male
Garganey, Adult male
Garganey, Pair
Blue-winged Teal, Pair
Cinnamon Teal, Pair
Northern Shoveler, Adult male
Northern Shoveler, Pair
Canvasback, Adult female
Canvasback, Pair
Redhead, Adult male
Redhead, Adult female
Ring-necked Duck, Pair
Ring-necked Duck, Pair
Tufted Duck, Pair
Greater Scaup, Pair
Greater Scaup, Adult male
Lesser Scaup, Pair
American Common Eider, Adult males
American Common Eider, Group …
Cracid News: Bulletin Of The Cracid Group Of The Iucn/Ssc-‐Wpa Galliform Specialist Group 29-33, 35-36 (2010-2014), Iucn Ssc-Wpa Galliformes Specialist Group
Cracid News: Bulletin Of The Cracid Group Of The Iucn/Ssc-‐Wpa Galliform Specialist Group 29-33, 35-36 (2010-2014), Iucn Ssc-Wpa Galliformes Specialist Group
Galliformes Specialist Group and Affiliated Societies: Newsletters
Volume 29 (Spring 2010)
In memoriam: Dr. Jesus Estudillo Lopez, Juan Cornejo
Ecology and behavior of the bare-faced curassow (Crax fasciolata) in the Brazilian Pantanal, Arnaud Léonard Jean Desbiez
Algunas características de la población y hábitat de Crax alberti en el Eco-Parque los Besotes, Valledupar–Cesar, Irina Margarita Mendoza Polo, Dewing Miguel Ochoa Ramos, Rafael Antonio Borja Acuña, y Tomas Gutiérrez Hinojosa
Volume 30 (Fall 2010)
Registros de cacería del paujil copete de piedra (Pauxi pauxi) en el extremo norte de la cordillera oriental de los Andes, Colombia, Víctor Setina Liz, Diego J. Lizcano, Milena Morales Sandoval, …
Thirty Years Of Mortality Assessment In Whooping Crane Reintroductions: Patterns And Implications, Barry K. Hartup, Marilyn G. Spalding, Nancy J. Thomas, Gretchen A. Cole, Young Jun Kim
Thirty Years Of Mortality Assessment In Whooping Crane Reintroductions: Patterns And Implications, Barry K. Hartup, Marilyn G. Spalding, Nancy J. Thomas, Gretchen A. Cole, Young Jun Kim
Proceedings of the North American Crane Workshop
We reviewed postmortem data to identify primary causes of mortality in reintroduced whooping cranes (Grus americana) and assess their potential for mitigation in future reintroduction efforts. In total, 240 cases from 3 populations were reviewed for causes of death, including the Rocky Mountain migratory population (n = 24, release dates 1975-1989), the Florida resident population (n = 186, 1993-2005), and the Wisconsin migratory population (n = 30, 2001-ongoing). Traumatic injury was the leading cause of mortality among the reintroduced whooping cranes, most commonly from predation (n = 120 or 50%, range 8-58% per project) or collision with fixed …
Morbidity And Mortality Of Captive Whooping Cranes At The International Crane Foundation 1976–2008, Barry K. Hartup, Jennifer N. Niemuth, Bridget Fitzpatrick, Maureen Fox, Cristin Kelley
Morbidity And Mortality Of Captive Whooping Cranes At The International Crane Foundation 1976–2008, Barry K. Hartup, Jennifer N. Niemuth, Bridget Fitzpatrick, Maureen Fox, Cristin Kelley
Proceedings of the North American Crane Workshop
Tracking the incidence of morbidity and mortality in captive animal collections helps inform husbandry and preventive medicine programs aimed at improving population health and viability. Carpenter and Derrickson (1982) and Olsen et al. (1997) published summary reports of captive whooping crane (Grus americana) mortality that served to identify key problem areas for the primary breeding flock and potential reintroduction programs involving this endangered species. We expanded on this approach and conducted an initial evaluation of morbidity and mortality factors for whooping cranes at the International Crane Foundation (ICF). The purpose of our study was to identify overrepresented factors …
Endoparasites Of Greater Sandhill Cranes In South-Central Wisconsin, Somer Hartman, Betsy Reichenberg, Jane Fanke, Anne E. Lacy, Barry K. Hartup
Endoparasites Of Greater Sandhill Cranes In South-Central Wisconsin, Somer Hartman, Betsy Reichenberg, Jane Fanke, Anne E. Lacy, Barry K. Hartup
Proceedings of the North American Crane Workshop
Windingstad and Trainer (1977) used both fecal sampling and postmortem examinations to document the occurrence of parasites in greater sandhill cranes (Grus canadensis tabida) from Wisconsin in the fall. We conducted repeated fecal sampling of a well-known population to expand on results of their study. Our objective was to determine whether seasonal differences exist in the prevalence of endoparasites of Wisconsin sandhill cranes. We collected 7 to 10 fecal samples approximately every other week from a consistent roost site on the Wisconsin River (43°34'52.99''N, 89°36'38.42''W) near Briggsville, Wisconsin, from 29 May through 25 September 2008. The sample size …
Impacts Of Global And Regional Climate On Whooping Crane Demography: Trends And Extreme Events, Karine Gil, William Grant, R. Douglas Slack, Enrique Weir
Impacts Of Global And Regional Climate On Whooping Crane Demography: Trends And Extreme Events, Karine Gil, William Grant, R. Douglas Slack, Enrique Weir
Proceedings of the North American Crane Workshop
We analyzed long-term demographic and environmental data to understand the role of large scale climatic factors (the Pacific Decadal Oscillations [PDO]) and environmental factors in 3 regions of North America on natality and mortality of the remnant migratory whooping crane (Grus americana) population. This is an endangered species that spends winters at Aransas National Wildlife Refuge (ANWR) in Texas, breeds at Wood Buffalo National Park (WBNP) in Canada and “…uses Nebraska as a primary stopover”. Long term data (27 years) of demography and environmental factors (PDO index, temperature and precipitation at WBNP, Nebraska and ANWR, pond water depth …
Longevity Records Of Rocky Mountain Greater Sandhill Cranes Banded During 1969–1987 In Idaho, Montana, Utah, And Wyoming, Roderick C. Drewien, Wendy M. Brown, Kent R. Clegg
Longevity Records Of Rocky Mountain Greater Sandhill Cranes Banded During 1969–1987 In Idaho, Montana, Utah, And Wyoming, Roderick C. Drewien, Wendy M. Brown, Kent R. Clegg
Proceedings of the North American Crane Workshop
Cranes species throughout the world are renowned for their longevity; however, most records are based on individuals in captivity. We compiled longevity records for wild Rocky Mountain greater sandhill cranes (Grus canadensis tabida) banded in Idaho, Montana, Utah, and Wyoming during 1969-1987. Our analysis was based on over 180 band recoveries and over 1,700 visual observations of known-age individually marked birds from 1969 to 2008. We present only those birds of age >20 years for this summary. Our results yielded 56 birds known to be >20 yrs of age when killed or last observed. Of 7 band recoveries, …
Demography Of Whooping Cranes In The Eastern Migratory Population, Sarah J. Converse, Richard P. Urbanek
Demography Of Whooping Cranes In The Eastern Migratory Population, Sarah J. Converse, Richard P. Urbanek
Proceedings of the North American Crane Workshop
The ultimate success of the whooping crane (Grus americana) reintroduction to eastern North America rests on adequate demographic performance of the population. We are undertaking a population viability analysis (PVA) of the eastern migratory population in order to evaluate progress toward the fundamental population objective, to better understand the critical demographic thresholds that must be met to fulfill this objective, and, most importantly, to support management decision-making. The initial phase in the PVA development process involves estimation of demographic parameters to be used in later population modeling phases. Multi-state models provide an appropriate analytic framework for estimation, wherein …
Current Status Of Lesser Sandhill Cranes In Yakutia, Inga Bysykatova, Sergey Sleptsov, Nikolay Vasiliev
Current Status Of Lesser Sandhill Cranes In Yakutia, Inga Bysykatova, Sergey Sleptsov, Nikolay Vasiliev
Proceedings of the North American Crane Workshop
In Yakutia, the sandhill crane (Grus canadensis canadensis) was considered a common bird in 1957 on the Primorie tundra from the Kolyma River to the Alazeya River. In 1980 the area of the species’ supposed breeding grounds within the Kolyma- Indigirka interfluve comprised 34,600 km2. In 1984-85, the breeding grounds extended west to the Sundrun River, with the total area reaching 49,400 km2. At present, the westernmost sandhill crane range is on the tundra along the lower reaches of the Berelekh River. This region joins the higher density Siberian crane (G. leucogeranus) range, so that the …
Summary Of Sandhill Crane Sport Harvest In Canada 1975–2006, Adrianna C. Araya, Kammie L. Kruse, Keith D. Warner
Summary Of Sandhill Crane Sport Harvest In Canada 1975–2006, Adrianna C. Araya, Kammie L. Kruse, Keith D. Warner
Proceedings of the North American Crane Workshop
Knowledge of harvest in all areas where the mid-continent population (MCP) of sandhill cranes (Grus canadensis) occurs is critical to managing the population in a sustainable manner. The harvest of MCP in the U.S. has been well documented; however, the harvest in Canada has received less attention. The Canadian Wildlife Service initiated a National Harvest Survey program in 1967, but all sampling variables were not directly comparable until 1975. In this paper, we summarize crane harvest in Canada during the 1975-2006 hunting seasons for Saskatchewan and Manitoba, the 2 provinces with significant sport hunting harvest of sandhill cranes. …