[Birds of North America] Lesser Snow Goose - Chen caerulescens caerulescens Spinaker dk North American Wildlife
The snow goose (Chen caerulescens), consisting of both a white phase and blue phase (Blue Goose), is a North American species of goose commonly collectively referred to as "light geese". Its name derives from the typically white plumage. Some authorities place this species in the more traditional grey goose genus Anser.
The smaller subspecies, the lesser snow goose (Chen caerulescens caerulescens), lives from central northern Canada to the Bering Straits area.