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Author: Eugene Potapov
Publisher: A&C Black
ISBN: 1408128187
Category : Nature
Languages : en
Pages : 304
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Book Description
WINNER OF THE WILDLIFE SOCIETY'S 'BEST SCIENCE BOOK 2006' AWARD This book is the first monograph on one of the most beautiful and admired birds in the world. The Gyrfalcon is the world's largest and most powerful falcon - a truly awe-inspiring bird which inhabits the ferociously inhospitable Arctic taiga, from Greenland and Iceland right across Siberia and northern Canada. Its plumage varies from a dark mottled grey to pure white - the white birds in particular are coveted by birders and falconers. Like other titles in the series, it covers all aspects of the species' biology, taxonomy, distribution, status and historical associations with mankind. The result is an exhaustively researched and enthrallingly readable biography of a spectacular bird, illustrated throughout with photographs and line drawings.
Author: Eugene Potapov
Publisher: A&C Black
ISBN: 1408128187
Category : Nature
Languages : en
Pages : 304
Get Book Here
Book Description
WINNER OF THE WILDLIFE SOCIETY'S 'BEST SCIENCE BOOK 2006' AWARD This book is the first monograph on one of the most beautiful and admired birds in the world. The Gyrfalcon is the world's largest and most powerful falcon - a truly awe-inspiring bird which inhabits the ferociously inhospitable Arctic taiga, from Greenland and Iceland right across Siberia and northern Canada. Its plumage varies from a dark mottled grey to pure white - the white birds in particular are coveted by birders and falconers. Like other titles in the series, it covers all aspects of the species' biology, taxonomy, distribution, status and historical associations with mankind. The result is an exhaustively researched and enthrallingly readable biography of a spectacular bird, illustrated throughout with photographs and line drawings.
Author: William H. Goudy
Publisher:
ISBN:
Category : Bird banding
Languages : en
Pages : 1194
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Book Description
Singing-ground surveys of the American woodcock indicate that breeding populations have increased gradually over the past 7 years while production, as indicated by wing-collection surveys, has remained relatively stable. The woodcock harvest, meanwhile, has probably more than doubled during the past decade. This suggests that while woodcock are probably becoming more important to North American sportsmen, hunting mortality is still relatively unimportant.
Author: James L. Ruos
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 638
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Book Description
U.S. mourning dove population indexes increased by 4% from 1969 to 1970 in the Eastern Management Unit, but declined 2% in the Central Management Unit and 11% in the Western Management Unit. The changes were below the 10-year means, 1960-69, by 3% in the Eastern Unit, 15% in the Central, and 27% in the Western. Regression analyses of the call-count data for 1960-70 indicate a statistically significant downward trend in dove breeding populations in all management units; mean rates of decline were 1% a year in the Eastern Unit, 3% a year in the Central, and 4% in the Western
Author: United States National Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 872
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Book Description
Author: Dick Dekker
Publisher: Hancock House
ISBN:
Category : Nature
Languages : en
Pages : 204
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Book Description
This book describes the foraging habits and capture rates of four species of bird-hunting falcons; Peregrine, Merlin, Gyrfalcon, and Prairie Falcon. Eight of the nine study areas were situated in western Canada in widely different habitats, and the observation periods intermittently included all seasons over 44 years, 1965-2008.
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 372
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 504
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Book Description
Author: Gerald E. Hayes
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 94
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Book Description
Author: U.S. Tundra Biome Program
Publisher:
ISBN:
Category : Mountain ecology
Languages : en
Pages : 294
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Book Description
Author: New York State Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 858
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Book Description
