Rather big falcon, feeds chiefly on birds, majority of prey taken on wing. Nominate peregrinus: N Eurasia (S of tundra); minor: Morocco, Mauritania and sub-Saharan Africa; brookei: Mediterranean basin east to the Caucasus Mountains; calidus: Tundra of Eurasia; more sub-species in other continents. For hunting, requires extensive open terrain often including various wetland or coastal habitats. For breeding, mainly cliffs, crags, also tree-tops or on ground. Population is increasing, the status is Least Concern. Migratory in N and NE, grading through strongly dispersive to resident in S and W.