Raptors of Western North America by Author Kevin T. Karlson contains over 120 color photos of all the raptors that occur west of the Rocky mountains in the continental United States and Canadian provinces. Multiple photos for many species show a variety of plumage conditions for males, femals 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.