| Description | large falcon; short tail; pointed wing tips; slate-gray above; black helmet on head; whitish neck; buff beneath; lightly barred breast; wing tips almost reach tail tip when perched; regional variations exist (very dark in the northwest to pale in the north |
| Sex | females have more brown than males |
| Age | juveniles are a dark buff color with heavy streaking underneath |
| Length | 16-20" |
| Wingspan | 3-3.7" |
| Weight | 1.6 lbs. |
| Habitat | open country, cliffs, cities |
| Status | once found across all of North America until pesticides such as DDT eliminated eastern populations, almost to extinction; pesticide banning and captive-breeding programs have helped with their recovery; seen year-round in the US, but uncommon to rare in the winter |
| Range | |
| Behavior | don't build nests; lay 2-4 reddish, darker flecked eggs in cliff hollows; bare rocky outcrops, bridges or tall building ledges; 28 day incubation period by both parents; chicks leave the nest at 5-6 weeks; hunts by flying very fast and making dramatic swoops to catch prey in midair |
| Diet | small birds, large insects, small mammals |
| Vocalization | rapid "kek kek kek kek", repeated "we chew" at nest |
| Other Information | - World Bird Sanctuary's reintroduction program put over 300 peregrines back into Missouri's wild - Peregrines are the fastest animals on earth and have been clocked diving at 287 mph - Three subspecies exist: pacific (Peale's), tundra and the interior west |