Hawks from North America 2nd Edition
Peterson Field Guides - William s. Clark and Brian K. Wheeler
This guide includes all 39 species of North American hawks and other diurnal raptors, including eagles, falcons, and vultures. Colour paintings and photographs show each species in various colour morphs and plumages, which are also described in detail.
Peterson Field Guides are designed to work in the field, and every illustration, every word, is directed to that end.