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. 63rd suppl.) |
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Stercorarius [skua, chilensis or maccormicki] | Megalestris skua Skua |
Megalestris skua Skua |
Megalestris skua Skua |
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Stercorarius [skua or antarcticus] | |
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Catharacta skua Northern Skua |
Catharacta skua Skua |
Catharacta skua Great Skua |
Catharacta skua Great Skua |
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* Stercorarius skua← | |
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Catharacta skua skua |
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Stercorarius skua Great Skua |
Stercorarius [antarcticus or lonnbergi] | |
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* Stercorarius antarcticus | |
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Stercorarius antarcticus antarcticus | |
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Catharacta skua antarctica |
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Stercorarius antarcticus hamiltoni | |
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* Stercorarius lonnbergi | |
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Catharacta skua lonnbergi |
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Stercorarius lonnbergi (lonnbergi) | |
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[Stercorarius lonnbergi (clarkei)] | |
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[Stercorarius lonnbergi (intercedens)] | |
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* Stercorarius chilensis | |
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Catharacta chilensis Chilean Skua |
Catharacta skua chilensis |
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* Stercorarius maccormicki | |
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Catharacta maccormicki South Polar Skua |
Catharacta maccormicki South Polar Skua |
Stercorarius maccormicki South Polar Skua |
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