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ADULT Has black head and neck with white "collar," dark gray upperparts, and white vent. Breast and belly are uniformly dark gray in nigricans; dark below, but paler on flanks in bernicla and Gray-bellied; uniformly pale gray in hrota.
JUVENILE Similar to respective parents, but white collar is absent until late winter, and back feathers show pale edges.
Dimensions
Length: 22-30"
Voice
A nasal, honking.
Discussion
Small coastal goose. Three subspecies are recognized, separable by belly
markings; they have reasonably distinct breeding and wintering grounds. Black Brant breeds in
northwestern North American Arctic and winters on Pacific coast of North
America. All birds feed on marine eelgrass and Sea
Lettuce, sometimes also on coastal grassland