Fifth International Waterfowl Symposium

Fifth International Waterfowl Symposium PDF Author:
Publisher:
ISBN:
Category : Waterfowl
Languages : en
Pages : 184

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Fourth International Waterfowl Symposium

Fourth International Waterfowl Symposium PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 306

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Birdscapes

Birdscapes PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 40

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The North American Geese

The North American Geese PDF Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 1609620941
Category : Nature
Languages : en
Pages : 161

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The eight currently recognized species of North American geese are part of a familiar group of birds collectively called waterfowl, all of which are smaller than swans and generally larger than ducks. They include the most popular of our aquatic gamebirds, with several million shot each year by sport hunters. Our two most abundant waterfowl, the Canada goose and snow goose, have populations collectively totaling about 15 million individuals. Like swans, the lifelong pairbonding of geese, their familial care, and prolonged social attachment to their offspring are legendary. Their seasonal migratory flights sometimes span thousands of miles, and the sight of their long, wavering flight formations are as much the symbols of seasonal change as are the spring songs of cardinals or the appearance of autumnal leaf colors. This book describes each species' geographic range and subspecies, its identification traits, weights and measurements, and criteria for its age and sex determination. Ecological and behavioral information includes each species' breeding and wintering habitats, its foods and foraging behavior, its local and long distance movements, and its relationships with other species. Reproductive information includes each species' age of maturity, pair-bond pattern, pair-forming behaviors, usual clutch sizes and incubation periods, brooding behavior, and postbreeding behavior. Mortality sources and rates of egg, young, and adult losses are also summarized, and each species' past and current North American populations are estimated. In addition to a text of nearly 60,000 words, the book includes 8 maps, 21 line drawings, and 28 photographs by the author, as well as more than 700 literature citations.

Ducks, Geese, and Swans of North America

Ducks, Geese, and Swans of North America PDF Author: Guy Baldassarre
Publisher: JHU Press
ISBN: 1421408082
Category : Science
Languages : en
Pages : 1183

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The best-selling and authoritative reference book on waterfowl has been fully revised and updated by one of the world’s most respected waterfowl biologists. Honorable Mention for the PROSE Award for Excellence, Multivolume/Science of the Association of American Publishers Ducks, Geese, and Swans of North America has been hailed as a classic since the first edition was published in 1942. A must-have for professional biologists, birders, waterfowl hunters, decoy collectors, and wildlife managers, this fully revised and updated edition provides definitive information on the continent's forty-six species. Maps of both winter and breeding ranges are presented with stunning images by top waterfowl photographers and the acclaimed original artwork of Robert W. (Bob) Hines. Originally authored by F. H. Kortright and later revised by Frank Bellrose, this latest edition, which has been meticulously updated by renowned waterfowl biologist Guy Baldassarre, continues the legacy of esteemed authors. Each species account contains in-depth sections on: • identification • distribution • migration behavior • habitat • population status • breeding biology • rearing of young • recruitment and survival • food habits and feeding ecology • molts and plumages • conservation and management To facilitate identification, the species accounts also include detailed illustrations of wings. An appendix contains comparative illustrations of ducklings, goslings, and cygnets. This edition of Ducks, Geese, and Swans consists of two volumes, printed in full color, and packaged in a slipcase, along with a CD containing references and additional maps.

Bird Conservation Implementation and Integration in the Americas

Bird Conservation Implementation and Integration in the Americas PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 672

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Wildlife Science

Wildlife Science PDF Author: Joseph P. Sands
Publisher: CRC Press
ISBN: 1439847746
Category : Nature
Languages : en
Pages : 333

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Despite the potential synergy that can result from basing management applications on results from research, there is a polarization of cultures between wildlife managers and wildlife researchers. Wildlife Science: Connecting Research with Management provides strategies for bridging cultural and communication gaps between these groups.Contributors p

Bibliography of References to Avian Botulism

Bibliography of References to Avian Botulism PDF Author: Sonoma S. Wilson
Publisher:
ISBN:
Category : Avian botulism
Languages : en
Pages : 16

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This bibliography, first compiled in 1970 and published in response to many requests for information on avian botulism, has been updated to include the literature published through 1980. In general only, articles dealing primarily with the avian disease are included, as opposed to those concerned with the various aspects of the biology of Clostridium botulinum, either type C or type E.A few exceptions, such as Bengtson's report of the first isolation and description of the type C organism, are included for their historical interest. Progress reports and other administrative documents not available for distribution on request are excluded, as are textbook accounts, which are generally summaries of work published elsewhere. This bibliography was a cooperative effort by the National Wildlife Laboratory, U.S. Fish and Wildlife Service, and the U.S. National Park Service, which provided partial funding for the work. Although there was an attempt to list every important reference, no claim to complete coverage of the published literature is made and the authors will be grateful to users of the bibliography who call attention to errors or omissions.

Acid Rain Publications by the U.S. Fish and Wildlife Service, 1979-1989

Acid Rain Publications by the U.S. Fish and Wildlife Service, 1979-1989 PDF Author: Rita F. Villella
Publisher:
ISBN:
Category : Acid rain
Languages : en
Pages : 32

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Acid Rain Publications by the U.S. Fish and Wildlife Service, 1979-1989

Acid Rain Publications by the U.S. Fish and Wildlife Service, 1979-1989 PDF Author: Rita Villella
Publisher:
ISBN:
Category : Acid rain
Languages : en
Pages : 40

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The North American Swans: Their Biology and Conservation

The North American Swans: Their Biology and Conservation PDF Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 1609621719
Category : Nature
Languages : en
Pages : 168

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Among birds, swans are relatively long-lived species and are also among the most strongly monogamous, having prolonged pair and family bonds that strongly influence their reproductive and general social behavior, which, in combination with their beauty and elegance, contribute to the overall high degree of worldwide human interest in them. This volume of more than 59,000 words describes the distributions, ecology, social behavior, and breeding biologies of the four species of swans that breed or have historically bred in North America, including the native trumpeter and tundra swans, the introduced mute swan, and the marginally occurring whooper swan. Also included are 5 distribution maps, 15 drawings, 27 photographs by the author, and a reference section of nearly 1,000 literature citations.