コザクラバシガン Anser brachyrhynchus

Relatively small and short-necked goose with contrasting dark brown head and neck, small black bill with pink band near tip, and pink legs. In flight shows extensively pale silvery upperwings. Breeds in Greenland, Iceland, and Spitsbergen; winters mainly in coastal lowlands with farmland and marshy grassland. In main areas, occurs in flocks of hundreds or even thousands; elsewhere, singles or family groups can be found among flocks of other geese. Rare but increasing winter visitor to northeastern North America, almost always with flocks of Canada Geese.