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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* Polioptila nigriceps | |
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Polioptila nigriceps Black-capped Gnatcatcher |
Polioptila nigriceps Black-capped Gnatcatcher |
Polioptila nigriceps Black-capped Gnatcatcher |
Polioptila nigriceps nigriceps | |
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Polioptila nigriceps restricta | |
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Polioptila [albiloris , albiventris or nigriceps] | |
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Polioptila [albiloris or albiventris]← | |
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Polioptila albiloris White-lored Gnatcatcher |
Polioptila albiloris White-lored Gnatcatcher |
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* Polioptila albiloris | |
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Polioptila albiloris White-lored Gnatcatcher |
Polioptila albiloris albiloris | |
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Polioptila albiloris vanrossemi | |
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* Polioptila albiventris | |
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Polioptila albiventris Yucatan Gnatcatcher |
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