Outside these states, Canada Geese breed through most of Alaska, Canada and the lower 48 United States. Breeding is rare in Arizona and southern California. These geese winter from southern Alaska and south Canada to northern Mexico (Howell and Webb 1995, Am.Ornithol.Union 1998, Mowbray et al.utside these states, Canada Geese breed through most of Alaska, Canada and the lower 48 United States. Breeding is rare in Arizona and southern California. These geese winter from southern Alaska and south Canada to northern Mexico (Howell and Webb 1995, Am. Ornithol. Union 1998, Mowbray et al.