also Blue Goose in blue phase
Chen caerulescens/Anser caerulescens
Snow Goose -- Rolls Royce impression -- never pure white; always black under wing
Snow Goose, blue phase
Snow Goose, white phase
The Snow Goose has two colour morphs, they can be either the blue or the white type and can interbreed. Offspring can be of either colour regardless of parent colour.
The Snow Goose comes from North America, breeding in the sub-Arctic and wintering further south. Females will return to the same place where they hatched to breed.
Occasional vagrants arrive in the UK to winter and there is a feral colony in Scotland.
Snow Goose, blue and white phases
Snow Goose size comparison with Swan and Barnacle Geese
The Lesser Snow Goose (nominate) subspecies
(Blue Geese are rare in the more easterly Greater subspecies, but there is little difference in size or appearance)