Publisher : Princeton University Press; Illustrated edition (30 Mar. 2011) Language : English Paperback : 190 pages ISBN-10 : 0691135592 ISBN-13 : 978-0691135595 Dimensions : 15.72 x 1.5 x 21.59 cm
商品描述
The ultimate must-have guide for identifying migrant raptors, Hawks at a Distance is the first volume to focus on distant raptors as they are truly seen in the field. Jerry Liguori, a leading expert on North American raptors, factors in new information and approaches for identifying twenty-nine species of raptor in various lighting situations and settings. The field guide's nineteen full-color portraits, 558 color photos, and 896 black-and-white images portray shapes and plumages for each species from all angles. Useful flight identification criteria are provided and the accompanying text discusses all aspects of in-flight hawk identification, including flight style and behavior. Concentrating on features that are genuinely observable at a distance, this concise and practical field guide is ideal for any aspiring or experienced hawk enthusiast. * The first guide to focus on distant raptors as they are viewed in the field * New information and approaches for identifying distant raptors * Illustrates twenty-nine species in various lighting situations and settings *558 color photos and 896 black-and-white images depicting plumage and shape characteristics * All aspects of in-flight hawk identification, including flight style and behavior
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