The term FAST FLYING BIRD OF PREY can be summarized as a FALCON, which is a 6 letter bird of prey that is known for its fast flying capabilities. Falcons are part of the family of birds known as raptors, and are found on every continent except Antarctica. They are carnivorous birds, and feed mainly on small mammals, reptiles, and other birds. Falcons have long, pointed wings and a long tail, which helps them to maneuver quickly in the air.