This is a web-based resource from the Forensics Lab for the identification of wing and tail feathers. This website contains high-resolution scanned images of the flight feathers of 64 species, including all widespread North American hawks and eagles, falcons, vultures, owls, and doves, as well as roadrunner and other cuckoos and flickers and other woodpeckers. Includes an extensive series of scans illustrating the appearance of the wing and tail feathers at various ages in both Bald and Golden Eagles. Produced by the U.S. National Fish and Wildlife Forensics Laboratory

http://www.lab.fws.gov/featheratlas/