Range Description: Rock Ptarmigan - Lagopus muta

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 - Resident year-round: 3,503,830 square km; Wintering only: 2,546,967 square km
U.S.A. - Resident year-round: 1,100,544 square km; Wintering only: 41,548 square km