Range Description: Horned Puffin - Fratercula corniculata

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 - Wintering only: 244,576 square km
Mexico - Wintering only: 45,946 square km
U.S.A. - Breeding only: 292,559 square km; Wintering only: 2,056,001 square km