Three subspecies of the peregrine falcon inhabit North America: the American (Falco peregrinus anatum), Arctic (Falco peregrinus tundrius), and Peale’s (Falco peregrinus pealei). Peregrine falcons are roughly crow-sized—about 15 to 21 inches...
Bird standing on end of vertical dead branch in Lake County, Deschutes National Forest, Oregon.
For more information about birds visit http://www.fws.gov/birds/.