Lesser Snow GooseOne of the two subspecies of the Snow Goose Anser caerulescens. It has the scientific name A.c. caerulescens; the other subspecies is the 'Greater Snow Goose' A.c. atlanticus. The lesser race has two 'colour phases', a white one and a blue-grey one, the latter being called the 'Blue Goose'. These phases are not regarded as subspecies, but merely as examples of dimorphism.
Search Bird Dictionary
From Peter Weaver's Birdwatcher's Dictionary
Copyright © 1981 by Peter Weaver