Species concept | American Ornithologists' Union 1st edition (1886) | American Ornithologists' Union 2nd edition (1895) | American Ornithologists' Union 3rd edition (1910) | American Ornithologists' Union 4th edition (1931) | American Ornithologists' Union 5th edition (1957) | American Ornithologists' Union 6th edition (1983) | American Ornithologists' Union 7th edition (1998) | American Ornithologists' Society 7th edition (incl. 62nd suppl.) |
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Branta [bernicla, hrota or nigricans]← | |
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Branta bernicla Brant |
Branta bernicla Brant |
Branta bernicla Brant |
Branta [bernicla or hrota] | Branta bernicla Brant |
Branta bernicla White-bellied Brant |
Branta bernicla Brant |
Branta bernicla American Brant |
Branta bernicla Brant |
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* Branta bernicla | |
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Branta bernicla (bernicla) | |
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[Branta bernicla (glaucogastra)] | |
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Branta bernicla glaucogastra |
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* Branta hrota | |
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Branta bernicla hrota |
Branta bernicla hrota |
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* Branta nigricans | Branta nigricans Black Brant |
Branta nigricans Black Brant |
Branta nigricans Black Brant |
Branta nigricans Black Brant |
Branta nigricans Black Brant |
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Branta nigricans nigricans | |
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Branta nigricans orientalis | |
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