Range Description: Ashy Storm-Petrel - Oceanodroma homochroa

Summary of the extent of the breeding, wintering, migration and year-round range of this species in the Western Hemisphere, including Canada, U.S.A. and Mexico:

Mexico - Breeding only: 531 square km; Wintering only: 62,242 square km
U.S.A. - Breeding only: 6,695 square km; Wintering only: 142,531 square km