A Field Guide to Hawks: North America (Peterson Field Guide Series, 35) - Softcover

Peterson

Softcover

ISBN 10: 0395441129 ISBN 13: 9780395441121

Publisher: Houghton Mifflin Company, 1987

Synopsis

Peterson Field Guide Hawks - Product Code:T397

About this title

About the Author:

William S. Clark, photographer, author, and lecturer, travels worldwide leading birding tours with his company, Raptours.

Excerpt. © Reprinted by permission. All rights reserved.:

NORTHERN GOSHAWK Pl. 13 Accipiter gentilis

Description The Northern Goshawk, our largest accipiter, is a breeding resident in northern and western mountain forests. Wings are long for an accipiter, rather buteo-like. Tip of folded tail is wedge-shaped. Sexes are almost alike in plumage, with females separably larger than males. Juvenile plumage is different from that of adults. Cere is greenish yellow to yellow. Legs are yellow. On perched birds, wingtips extend halfway to tail tip. Widespread race atricapillus is described below.

ADULT: Head is black except for wide white superciliary lines and whitish throat. Eye color varies from orange to red to mahogany, darkening with age. Back and upperwing coverts are blue-gray and average darker on females; they contrast with blackish uppersides of flight feathers. Underwing coverts and underparts are pale blue-gray with fine black vermiculations and some vertical black streaking. Females usually have coarser, darker barring and more vertical black streaking. Primaries show dusky banding on undersides; secondaries show, at most, faint banding. Tail is blue-gray, with three or four incomplete blackish bands. Undertail coverts are white and fluffy.

About this edition

• Publisher: Houghton Mifflin Company
• Publication date: 1987
• ISBN 10: 0395441129
• ISBN 13: 9780395441121
• Binding: Paperback
• Number of pages: 240