Most are concentrated in the arid western escarpments areas, with a well-studied population in the Orange River valley in the south and other populations in the Waterberg Plateau in acacia savanna in central-north Namibia. Most birds occur in areas experiencing mean annual rainfall below 450 mm. Breeding occurs between August-October with 1.7 young per pair fledged from 8 pairs over 47 pairyears in the Orange River. Little is known of their ecology but birds frequent waterholes to hunt nomadic species such as sandgrouse and larks, as well as coastal mudflats where they hunt migrant shorebirds. High temperatures and UV levels probably protect breeding birds from threats such as DDT pesticides used for malaria. However, increasing temperature and decreased rainfall with global climate change is likely to decrease Peregrine populations by 2050 in Namibia.