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:
Canada - Breeding only: 477,742 square km; Wintering only: 2,800 square km; Migration only: 3,862,174 square km
Mexico - Wintering only: 262,099 square km; Migration only: 19,495 square km
U.S.A. - Breeding only: 30,471 square km; Wintering only: 1,498,416 square km; Migration only: 4,037,481 square km