Download or read book The Gyrfalcon written by Eugene Potapov and published by A&C Black. This book was released on 2010-01-29 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Parasitic Diseases of Wild Birds written by Carter T. Atkinson and published by John Wiley & Sons. This book was released on 2009-03-20 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasitic Diseases of Wild Birds provides thorough coverage of major parasite groups affecting wild bird species. Broken into four sections covering protozoa, helminths, leeches, and arthropod parasites, this volume provides reviews of the history, disease, epizootiology, pathology, and population impacts caused by parasitic disease. Taking a unique approach that focuses on the effects of the parasites on the host, Parasitic Diseases of Wild Birds fills a unique niche in animal health literature.

Download or read book Biology of the Peregrine and Gyrfalcon in Greenland written by William A. Burnham and published by Museum Tusculanum Press. This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Arctic Flora and Fauna written by Henry P. Huntington and published by . This book was released on 2001 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is "to summarize ... the information required to assess the state of the Arctic's natural environment today ... ; to provide a useful reference to a wide audience of policy makers, Arctic residents, researchers, and others active in the conservation of Arctic flora and fauna; to point the way to improving our collective understanding and facilitating the international cooperative action required to conserve the Arctic's natural environment."--Page 11.

Download or read book Population Limitation in Birds written by Ian Newton and published by Academic Press. This book was released on 1998-04-08 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book meets the demand for a comprehensive introduction to understanding the processes of population limitation. Recognized world-wide as a respected biologist and communicator, Dr. Ian Newton has now written a clear and detailed treatise on local scale population limiting factors in birds. It is based almost entirely on results from field studies, though it is set in a contemporary theoretical framework. The 16 chapters fall under three major section headings: Behavior and Density Regulation; Natural Limiting Factors; and Human Impacts. Population Limitation in Birds serves as a needed resource expanding on Dr. David Lacks research in this area of ornithology in the 1950s. It includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie. - Provides a sorely needed introduction to a long-established core subject in ornithology - Focuses on local scale factors - Written by a well-known biologist and effective communicator - Includes numerous line diagrams and beautiful illustrations by acclaimed wildlife artist Keith Brockie

Download or read book Applied Raptor Ecology written by David Lawrence Anderson and published by . This book was released on 2017-07-31 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Birds of the Chatham Islands written by Hilary Aikman and published by . This book was released on 2004 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive book on the bird of the Chatham Islands, written by 2 Dept. of Conservation experts. All 68 breeding species are illustrated with colour photos and distribution maps. Includes such iconic species as black robin, Chatham Islands taiko and albatross.

Download or read book Urban Raptors written by Clint W. Boal and published by Island Press. This book was released on 2018-06-12 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Raptors are an unusual success story of wildness thriving in the heart of our cities—they have developed substantial populations around the world in recent decades. But there are deeper issues around how these birds make their urban homes. New research provides insight into the role of raptors as vital members of the urban ecosystem and future opportunities for protection, management, and environmental education. A cutting-edge synthesis of over two decades of scientific research, Urban Raptors is the first book to offer a complete overview of urban ecosystems in the context of bird-of-prey ecology and conservation. This comprehensive volume examines urban environments, explains why some species adapt to urban areas but others do not, and introduces modern research tools to help in the study of urban raptors. It also delves into climate change adaptation, human-wildlife conflict, and the unique risks birds of prey face in urban areas before concluding with real-world wildlife management case studies and suggestions for future research and conservation efforts. Boal and Dykstra have compiled the go-to single source of information on urban birds of prey. Among researchers, urban green space planners, wildlife management agencies, birders, and informed citizens alike, Urban Raptors will foster a greater understanding of birds of prey and an increased willingness to accommodate them as important members, not intruders, of our cities.

Download or read book Peregrine Falcons of the World written by Clayton M. White and published by Lynx Edicions. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Perhaps beginning near the end of the Pleistocene, Peregrines began to acquire a vast cosmopolitan distribution, and set the stage for fascinating structural, behavioral, and population distinctions related to where they lived. Those divergences were driven by the various demands of landscapes as different as one can find on earth, including Greenland tundra, South Pacific islands, Utah arid scrublands, the cold wind-swept Aleutians, and warm, moist Indonesian forests. Modern Peregrines reveal that geographic isolation may befall even a creature renowned for great speed and mobility. Peregrine Falcons of the World brings together the lifetime experiences of the authors with this splendid falcon in the field and in museums, hundreds of personal accounts by Peregrine observers worldwide, a vast literature on this falcon which is surely among the best-studied birds, scores of superb photographic images so generously supplied, and the matchless art of Andrew Ellis. The goal is to provide a feel for how Peregrines have responded to their varied world, and to earmark the many gaps in what we know. Oddly, Peregrines have not colonized many places, where by any reckoning, they should be. In recent times, roughly twenty subspecies of Peregrines were described. The historical reasons for these designations, and our current analyses are provided here. Some populations are very distinct in form and color, but sometimes they geographically overlap and intergrades appear. Each subspecies account also describes distribution, hunting and nesting habitats, migration and wintering ranges, estimated population sizes, and conservation aspects. In the end, present day Peregrines appear in at least a score of populations experiencing different degrees of isolation and enjoying different rates of divergence. The challenge of understanding their relationships is sometimes made greater by almost complete lack of information or specimens from vast regions where neighboring subspecies apparently come together because no obvious barrier exists. But the Peregrine Falcon will never lack for serious aficionados. Field people around the world add to the growing literature almost weekly so that someday a more complete appreciation is inevitable." --Publisher's description.

Download or read book Effects of Climate Variation on the Breeding Ecology of Arctic Shorebirds written by Hans Meltofte and published by Museum Tusculanum Press. This book was released on 2007 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 50 species of shorebirds breed in the Arctic, where they constitute the most characteristic component of the tundra avifauna. Here, we review the impact of weather and climate on the breeding cycle of shorebirds based on extensive studies conducted across the Arctic. Conditions for breeding shorebirds are highly variable among species, sites and regions, both within and between continents. Weather effects on breeding are most moderate in the Low Arctic of northern Europe and most extreme in the Siberian High Arctic. The decision of whether or not to breed upon arrival on the breeding grounds, the timing of egg-laying and the chick-growth period are most affected by annual variation in weather. In large parts of the Arctic, clutch initiation dates are highly correlated with snowmelt dates and in regions and years where extensive snowmelt occurs before or soon after the arrival of shorebirds, the decision to breed and on the breeding ecology of clutch initiation dates appear to be a function of food availability for laying females. Once incubation is initiated, adult shorebirds appear fairly resilient to variations in temperature with nest abandonment primarily occurring in case of severe weather with new snow covering the ground. Feeding conditions for chicks, a factor highly influenced by weather, affects juvenile production in most regions. Predation has a very strong impact on breeding productivity throughout the Arctic and subarctic, with lemming Dicrostonyx spp. and Lemmus spp. fluctuations strongly influencing predation rates, particularly in the Siberian Arctic. The fate of Arctic shorebirds under projected future climate scenarios is uncertain, but High Arctic species and populations appear particularly at risk. Climatic amelioration may benefit Arctic shorebirds in the short term by increasing both survival and productivity, whereas in the long term habitat changes both on the breeding grounds and on the temperate and tropical non-breeding areas may put them under considerable pressure and may bring some of them near to extinction. Their relatively low genetic diversity, which is thought to be a consequence of survival through past climatically-driven population bottlenecks, may also put them more at risk to anthropogenic-induced climate variation than other avian taxa.

Download or read book Shorebirds written by Jan van de Kam and published by BRILL. This book was released on 2017-03-27 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shorebirds are the most visible inhabitants of coastal wetlands worldwide. Many undertake spectacularly long flights between their wintering and breeding grounds, embodying the miracle of long-distance migration in a profound way. In this illustrated behavioural ecology the migration, feeding and breeding of these birds are explained in a comprehensive but simple and visually stunning form. The core of the book is based on studies of shorebirds and other waterbirds (such as ducks, geese and gulls) that migrate along the East Atlantic Flyway. The emphasis is on those using the Dutch, German and Danish Wadden Sea; examples from the rest of the world are also included. The authors are experts in the fields of bird migration, shorebird behaviour and intertidal ecology, and have contributed much to our current understanding of these subjects. The 300 magnificent portraits of waterbirds in action were taken by Jan van de Kam, one of The Netherlands' foremost wildlife photographers.

Download or read book Peregrine Falcon Populations written by Tom J. Cade and published by . This book was released on 1988 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Kestrel Nestlings written by James R. Klucsarits and published by . This book was released on 2007-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gyrfalcons and Ptarmigan in a Changing World written by and published by . This book was released on 2011 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Bird Life written by Evan Graham Turbott and published by . This book was released on 1947 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about birds of New Zealand, follow their movements and discover their their secret haunts and hidden homes.

Download or read book Birds of New Zealand written by Paul Scofield and published by Yale University Press. This book was released on 2013 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Kermadecs to Campbell Island, beloved endemics to passing vagrants, albatrosses and shearwaters to kiwi and kaka, Birds of New Zealand is the ultimate guide to this countrys extraordinary avian life. It is illustrated with almost 1000 new photographs and uses the latest information from birders and biologists to draw a definitive introduction to bird identification and behaviour. Includes expert information on the 345 bird species found in New Zealand; key identification characteristics and variation by age and sex; authoritative texts covering behaviour, distribution and taxonomy; and Maori, English and scientific names. A copy of this must-have guide belongs in every bach and backpack. The author of Albatrosses, Petrels and Shearwaters of the World, Paul Scofield is a leading New Zealand ornithologist. Brent Stephenson is a New Zealand bird photographer and tour leader.

Download or read book Arctic Bulletin written by and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: One issue each year devoted to the annual report.