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Published in Rhodora, in 1902, in volume 4, issue 48, pages 248
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Published in Proceedings of The Biological Society of Washington, in 1939, in volume 52, pages 177-183
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Published in The Auk, in 1907, in volume 24, pages 453
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2
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Published in Proceedings of The Biological Society of Washington, in 1938, in volume 51, pages 177-181
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Published in The Auk, in 1905, in volume 22, pages 259-266
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Published in The Auk, in 1905, in volume 22, pages 266-273
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Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 87-91
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Published in Pacific Science, in 1954, in volume 8, issue 3, pages 243-263
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Published in The Auk, in 1903, in volume 20, pages 306-308
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Published in Smithsonian Miscellaneous Collections, in 1921, in volume 72, pages 1-43
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Published in The Auk, in 1905, in volume 22, pages 134-140
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Published in The Auk, in 1906, in volume 23, pages 113-114
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Published in Bulletin of The African Bird Club, in 2000, in volume 7, issue 1, pages 13-17
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Published in The Auk, in 1903, in volume 20, pages 285-293
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Published in Bulletin of The British Ornithologists' Club, in 2005, in volume 125, pages 149-153
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Published in Great Basin Naturalist, in 1977, in volume 37, pages 100
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Published in Great Basin Naturalist, in 1977, in volume 37, pages 258
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Published in Journal of Raptor Research, in 1992, in volume 26, issue 3, pages 196-197
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Published in Raptor Research, in 1985, in volume 19, issue 2-3, pages 85-93
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Published in Proceedings of the Biological Society of Washington, in 1909, in volume 22, pages 39-42
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Published in Proceedings of the Biological Society of Washington, in 1909, in volume 22, pages 143-152
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