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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* Falco columbarius← | |
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Falco columbarius Pigeon Hawk |
Falco columbarius Merlin |
Falco columbarius Merlin |
Falco columbarius Merlin |
Falco columbarius [columbarius, suckleyi or richardsonii] | |
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Falco columbarius Pigeon Hawk |
Falco columbarius Pigeon Hawk |
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Falco columbarius [columbarius or suckleyi] | Falco columbarius Pigeon Hawk |
Falco columbarius Pigeon Hawk |
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Falco columbarius columbarius | Falco columbarius columbarius |
Falco columbarius columbarius |
Falco columbarius columbarius |
Falco columbarius columbarius |
Falco columbarius columbarius |
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Falco columbarius suckleyi | Falco columbarius suckleyi |
Falco columbarius suckleyi |
Falco columbarius suckleyi |
Falco columbarius suckleyi |
Falco columbarius suckleyi |
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Falco columbarius richardsonii | Falco richardsonii Richardson's Merlin |
Falco richardsonii Richardson's Merlin |
Falco columbarius richardsoni |
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Falco columbarius richardsonii (richardsonii) | |
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Falco columbarius richardsoni |
Falco columbarius richardsonii |
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[Falco columbarius richardsonii (bendirei)] | |
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Falco columbarius bendirei |
Falco columbarius bendirei |
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Falco columbarius [aesalon] | |
Falco regulus Merlin |
Falco aesalon Merlin |
Falco aesalon Merlin |
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Falco columbarius aesalon | |
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Falco aesalon aesalon |
Falco columbarius aesalon |
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Falco columbarius aesalon (aesalon) | |
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[Falco columbarius aesalon (regulus)] | |
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Falco columbarius subaesalon | |
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Falco columbarius subaesalon |
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Falco columbarius insignis | |
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Falco columbarius pacificus | |
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Falco columbarius lymani | |
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Falco columbarius pallidus | |
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Falco columbarius pallidus (pallidus) | |
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[Falco columbarius pallidus (christianiludovici)] | |
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