- Medium to small goose.
- Black head, neck, and chest.
- White, partly broken collar.
Immature DescriptionSimilar to adult, but without white collar and with white scaling on back.
Relative Sizegoose-sized or larger
- Length: 233.1-244.9 in (592-622 cm)
- Weight: 41.1-61.3 oz (1165-1737 g)
- Wingspan: 41.3-42.5 in (105-108 cm)
- Length: 221.7-229.9 in (563-584 cm)
- Weight: 36.2-58.1 oz (1025-1648 g)
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