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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* Larus hyperboreus← | Larus glaucus Glaucous Gull |
Larus glaucus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus Glaucous Gull |
Larus hyperboreus hyperboreus | |
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Larus hyperboreus hyperboreus |
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Larus hyperboreus pallidissimus | |
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Larus hyperboreus barrovianus | |
Larus barrovianus Point Barrow Gull |
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Larus hyperboreus barrovianus |
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Larus hyperboreus leuceretes | |
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