The Peregrine Falcon is cosmopolitan and found around the world. It requires coastal or inland cliffs for breeding but prefers open country for hunting. It feeds mainly on birds both small and medium-sized which it catches on the wing. The Peregrine Falcon is extremely fast.

Adults are dark grey above and barred black on white below. The female is larger than the male. These photos show a juvenile which is browner but, more noticeably, has streaks below running in line with its body rather than bars running across.