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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* Thalasseus bergii← | |
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Sterna bergii Great Crested Tern |
Thalasseus bergii Great Crested Tern |
Thalasseus bergii [bergii or enigma] | |
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Thalasseus bergii bergii | |
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Thalasseus bergii enigma | |
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Thalasseus bergii velox | |
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[Thalasseus bergii velox (bakeri)] | |
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[Thalasseus bergii velox (edwardsi)] | |
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Thalasseus bergii cristatus | |
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Thalasseus bergii cristatus (cristatus) | |
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[Thalasseus bergii cristatus (gwendolenae)] | |
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[Thalasseus bergii cristatus (pelecanoides)] | |
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[Thalasseus bergii cristatus (poliocercus)] | |
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[Thalasseus bergii cristatus (halodramus)] | |
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Thalasseus bergii thalassinus | |
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