The Crossley ID Guide: Raptors (Crossley Id Guides)
Part of the revolutionary Crossley ID Guide series, this is the first raptor guide with lifelike scenes composed from multiple photographs--scenes that allow you to identify raptors just as the experts do. Experienced birders use the most easily observed and consistent characteristics--size, shape, behavior, probability, and general color patterns. The book's 101 scenes--inc More »