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Author: George C. West Publisher: UNM Press ISBN: 0826345611 Category : Nature Languages : en Pages : 422
Book Description
Designed to help birders and banders identify, age, and sex all seventeen species of hummingbirds found in North America, this is the only identification guide devoted entirely to hummingbirds that includes up-close, easy-to-use illustrations. It also provides information on the eight species that have been reported but rarely seen in North America. On first viewing hummingbirds are often a blur of fast-moving color. However, when they perch and hover they can be observed, and the size, shape, and color; the proportions of the body, bill, throat, and tail; the wing feather pattern; and the birds’ behavior are crucial to accurate identification. The author’s concise descriptions and illustrations pinpoint all these features in clear, jargon-free language. Anyone who loves hummingbirds will welcome the information he provides.
Author: George C. West Publisher: UNM Press ISBN: 0826345611 Category : Nature Languages : en Pages : 422
Book Description
Designed to help birders and banders identify, age, and sex all seventeen species of hummingbirds found in North America, this is the only identification guide devoted entirely to hummingbirds that includes up-close, easy-to-use illustrations. It also provides information on the eight species that have been reported but rarely seen in North America. On first viewing hummingbirds are often a blur of fast-moving color. However, when they perch and hover they can be observed, and the size, shape, and color; the proportions of the body, bill, throat, and tail; the wing feather pattern; and the birds’ behavior are crucial to accurate identification. The author’s concise descriptions and illustrations pinpoint all these features in clear, jargon-free language. Anyone who loves hummingbirds will welcome the information he provides.
Author: Erik I. Johnson Publisher: CRC Press ISBN: 1351646079 Category : Nature Languages : en Pages : 737
Book Description
Molt is an important avian life history event in which feathers are shed and replaced. The timing, duration, seasonality, extent and pattern of molt follows certain strategies and this book reviews and describes these strategies for nearly 190 species based on information gathered from a 30-year study of Central Amazonian birds. Most species accounts are illustrated with several color photos focusing on wing and tail feather molt, molt limits, and how to use these patterns to accurately age birds. Published in collaboration with and on behalf of the American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series is a rich source of life history information for ornithologists working on tropical birds.
Author: Jon D. McCracken Publisher: Hull, Québec : Canadian Wildlife Service ISBN: Category : Bird banding Languages : en Pages : 128
Book Description
The Canadian Bird Bander's Training Manual and the companion, The Instructor's Guide have been designed to complement each other. Both are the result of the collective work of many experienced banders and trainers from Long Point Bird Observatory. The motivating factors in the production of these manuals have been to ensure the safety and welfare of the birds involved in any banding project, as well as to ensure that banders gather accurate and complete data.
Author: George C. West
Author: George C. West
Author: United States. Bird Banding Laboratory
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Author: Erik I. Johnson
Author: U.S. Fish and Wildlife Service
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Author: 
Author: Lisa A. Tell
Author: 
Author: Jon D. McCracken