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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' Union 7th edition (incl. 61st suppl.) |
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* Sterna hirundo← | Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo Common Tern |
Sterna hirundo [hirundo, tibetana or minussensis] | |
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Sterna hirundo [hirundo or minussensis] | |
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Sterna hirundo hirundo | |
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Sterna hirundo hirundo |
Sterna hirundo hirundo |
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Sterna hirundo minussensis | |
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Sterna hirundo longipennis | |
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Sterna hirundo [tibetana or minussensis] | |
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Sterna hirundo tibetana | |
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