One of a new series of “ID Guides,” The Crossley Guide: Raptors addresses 34 species. The book is organized into three parts: the first provides computer-assisted images of the raptors, from several angles, in expected habitat/settings, with side-by-side comparisons of the sexes, ages, morphs, and similar species. The photos of each species cover two pages for scarce and localized species or four pages for more common or widespread species. These photos, generally, give the reader an opportunity to see the raptor under a variety of realistic conditions. Some of these plates are in the form of a quiz. The second part consists of species accounts, broken down by overview, flight style, size and structure, plumage, geographic variation, molt, similar species, status and distribution, migrations, and vocalizations. The third part provides the answers to the photo quizzes in the first part.