Gyrfalcon, Falco Rusticolus L. PDF Download

Author: Carol Snow
Publisher:
ISBN:
Category : Falcons
Languages : en
Pages : 30

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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: David Lawrence Anderson
Publisher:
ISBN: 9781548430764
Category : Applied ecology
Languages : en
Pages : 308

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Book Description
Applied Raptor Ecology provides raptor researchers with the blueprint to determine which questions should be asked, record consistent data usable by researchers worldwide, apply appropriate analysis of those data, and break down the obstacles to collaboration. Editors Dr. David Anderson and Dr. Christopher McClure of The Peregrine Fund and Dr. Alastair Franke of the Arctic Raptors Project recruited 13 raptor ecology experts from around the world to contribute chapters ranging in scope from terminology to systematic data management to home range estimation: examples of estimator effects. Anderson states, "This book is designed to be almost like a cookbook to enable readers to collect data in a standardized, well-organized manner and run analyses based on the questions they want to answer. The gyrfalcon is the species we chose as a case study to illustrate raptor biology techniques, but these methods and questions can be applied to almost any raptor species around the world."Applied Raptor Ecology is a valuable addition to the bookshelf of every biologist, whether in the field for many years or as an entry level graduate planning a thesis project. Additional features of this book include:* a companion website for users to download computer code to perform analyses in R that are adaptable to individual research needs and questions* a photographic and morphometric guide to aging Gyrfalcon nestlings* guidelines for conducting a camera study of nesting raptors

Author: Dick Dekker
Publisher: Hancock House
ISBN:
Category : Nature
Languages : en
Pages : 204

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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: William A. Burnham
Publisher: Museum Tusculanum Press
ISBN: 9788763511629
Category : Science
Languages : en
Pages : 32

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Book Description
A ten year study began in 1972 in West Greenland to investigate the breeding biology of the peregrine falcon. Data on nesting gyrfalcons were also collected. Thirty-four peregrine nesting sites were examined in the 6050 km2 inland study area near Søndre Strømfjord. Limited research also centered in Disko Bugt and Frederikshåb. Peregrines were found nesting predominantly on high, south-facing cliffs, which overlooked large areas. The mean minimum distance between peregrine eyries was 7.7 km for the inland area (1972 and 1973) and 55 km for the coast (1974). Approximately 60 percent of the inland nesting sites were occupied each year. A ten-year average production of 1.90 young per occupied site and 2.78 young per successful site was determined. Lapland longspurs, snow buntings, wheatears, and redpolls comprised 90 percent of the peregrines diet. Raven nests and prey availability may be the most significant factor affecting falcon density. Addled peregrine eggs, eggshell fragments, and peregrine prey species were collected. Whole eggs averaged 14.3 ppm wet weight (305 ppm lipid weight ) DDE, while eggshell measurements showed a 16 percent thinning compared with pre-1940 eggs from Greenland. Prey species carried low levels of DDE. The peregrine population appears to be at a near critical contamination level, and a small increase in DDE level could contribute to a population decline. No indication of a decline has been observed during the study, and the population appears stable. The project banded 185 peregrines, from which 8 recoveries occurred. The recoveries suggest peregrines migrate south to winter in South America.

Author: Norman Barichello
Publisher: FriesenPress
ISBN: 1525551043
Category : Nature
Languages : en
Pages : 183

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Book Description
Gyrfalcons and humans have shared a remarkable relationship since prehistoric times. These extraordinary arctic falcons have been revered, coveted as an item of commerce, persecuted, and enjoyed as a spectacle of sport for at least ten thousand years. Today, climate change has brought new challenges, with habitat in the far north changing rapidly as natural cycles begin to break down. Drawn from over thirty years of study and observation, this in-depth study provides a comprehensive view of the gyrfalcon’s place in the arctic ecosystem, including their inextricable link to their primary pray, the ptarmigan, and their antagonistic relationship with golden eagles. It explores the connection the bird has had with humanity in both legend and practice, and the challenges it faces as its habitat continues to change. This definitive look at the gyrfalcon shows us both sides of the majestic bird: the master of its domain and a threatened species facing an uncertain future.

Author: Giovanni Leonardi
Publisher: Springer Nature
ISBN: 3030605418
Category : Science
Languages : en
Pages : 214

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This monograph is the result of eight years of bibliographical and field research concerning several behavioural ecology aspects of the Palaearctic falcons. For a while, this book grew along with “The Lanner falcon” published in 2015 and revised in 2017. In both books the main aim was to provide a clear overview of the biology and ecology of these species. In fact in the last 20 years, the number of publications on falcons has grown tremendously and, in parallel, also those belonging to the so-called "grey literature". The number of people involved is also increased by including both academics and nature lovers. Many previously published books emphasized identification, and offered little insights on the behavioural and ecological aspects of the species. Very often, the research on behavioural ecology remains closed within the confines of academic community. By contrast, a multitude of basic data is scattered in countless articles published in local magazines. Many falcon species are easy to observe and study (such as kestrels) but others are more rare and localized. In order to understand the survival strategies adopted by this group of avian predators, it is necessary not to lose sight of the overall picture. This book tries to explain the different survival strategies by examining, through a few essential chapters, some crucial aspects for all species. The first chapter provides information on the genus Falco, its genetics, evolution and morphological peculiarities. The other chapters deal with reproductive strategies, competition, exploitation of resources, dispersal patterns, communication and sociality. One of the main objectives of this book is to produce an accessible but scholarly curated source of reference. By understanding the most common species, it is possible to provide a working framework for rarer, and especially threatened, falcon species.

Author: Marie Kubiak
Publisher: John Wiley & Sons
ISBN: 111938995X
Category : Medical
Languages : en
Pages : 524

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Book Description
Easy-to-use, comprehensive reference covering the less common species encountered in general veterinary practice Handbook of Exotic Pet Medicine provides easy-to-access, detailed information on a wide variety of exotic species that can be encountered in general veterinary practice. Offering excellent coverage of topics such as basic techniques, preventative health measures, and a formulary for each species, each chapter uses the same easy-to-follow format so that users can find information quickly while working in the clinic. Presented in full colour, with over 400 photographs, the book gives small animal practitioners the confidence to handle and treat more familiar pets such as budgerigars, African grey parrots, bearded dragons, corn snakes, tortoises, pygmy hedgehogs, hamsters and rats. Other species that may be presented less frequently including skunks, marmosets, sugar gliders, koi carp, chameleons and terrapins are also covered in detail to enable clinicians to quickly access relevant information. Provides comprehensive coverage of many exotic pet species that veterinarians may encounter in general practice situations Presents evidence-based discussions of topics including biological parameters, husbandry, clinical evaluation, hospitalization requirements, common medical and surgical conditions, radiographic imaging, and more The Handbook of Exotic Pet Medicine is an ideal one-stop reference for the busy general practitioner seeing the occasional exotic animal, veterinary surgeons with an established exotic animal caseload, veterinary students and veterinary nurses wishing to further their knowledge.

Author: Emma Ford
Publisher:
ISBN: 9780719555145
Category : Gyrfalcon
Languages : en
Pages : 190

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Book Description
The gyr is the largest, fastest and arguably the most beautiful falcon in the world. For centuries man has been driven to acquire live specimens from their Arctic territory for sport and even as currency. This is a study of the species, using drawings, sketches, paintings and photographs. The author examines the gyrfalcon's role in natural history, its place in literature and its long-established use in falconry.

Author: William Yarrell
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 670

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