Birds of Prey: Names and photos of birds of prey.
Buteo.com: Photos and facts about birds of prey (eagles, hawks, falcons, kestrels, owls, harriers, accipiters, buteos, osprey) that can be seen in the United States.
Peregrine Fund: Works to conserve wild populations of birds of prey.
Raptor Information System: A keyworded catalog of over 40,000 references about the biology and management of birds of prey.
Raptors: Images and notes on 9 species from around the world.