Range Description: Pigeon Guillemot - Cepphus columba

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: 228,057 square km
Mexico - Resident year-round: 159 square km
U.S.A. - Resident year-round: 1,095,907 square km