Frequents bodies of water in open areas with cliffs and canyons nearby for cover and nesting. Yearlong, diurnal activity. Breeds early March to late August. A second clutch may be laid if eggs are destroyed or removed early in the breeding season. Occurs worldwide, in cosmopolitan distribution pattern in a wide variety of habitats.
Individuals often wander.
Golden eagles, great horned owls, raccoons and other mammals may prey on young. May compete with ravens and prairie falcons for nest site. Ecology of the peregrine and gyrfalcon populations in Alaska. Harlow, D. L. 1978. The reproductive success and protective effort of peregrine falcons in California.