Raptors of Eastern North America by Author Kevin T. Karlson. Contains over 120 color photos of all the raptors that occur east of the Rocky mountains in the Uniter States and Canadian provinces. Multiple photos for many species show a variety of plumage conditions for males, females and different color morphs, upperside and underside flight views, as well as a number of different wing shapes for each species in flight. Perched birds are also shown.