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Mexican species
| Brant (Branta bernicla) | |||
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| Subspecies | Hide subspecies | ||
| bernicla | bernicla (Dark-bellied) | Breeds north-central Siberia; winters coastal England and northwestern Europe | |
| hrota | hrota (Pale-bellied) | Breeds in eastern arctic Canada, northern Greenland, Spitsbergen, and Franz Josef Land; winters in coastal eastern North America, Ireland, Great Britain, and Denmark | |
| nigricans | nigricans (Black) | Breeds northeastern Siberia, western and northern Alaska, and northwestern Canada; winters from from Japan to Korea and northeastern China, and from Alaska to northwestern Mexico | |
| Endemic status | |||
| Sound Guide | x4x | ||
| Comment | A Gray-bellied form exists in America with intermediate characters somewhat between dark- pale-bellied. | ||
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