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Published in The Auk, in 1900, in volume 17, pages 176-177

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Published in Ibis, in 1892, in volume 4, issue 2, pages 254-261

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Published in The Wilson Bulletin, in 1946, in volume 58, issue 2, pages 112

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Published in The Wilson Bulletin, in 1954, in volume 66, issue 3, pages 207-215

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Published in Bulletin of The African Bird Club, in 2015, in volume 22, issue 2, pages 216-217

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Published in Forktail, in 2009, in volume 25, pages 147-150

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Published in The Journal of the Ceylon Branch of the Royal Asiatic Society of Great Britain & Ireland, in 1883, in volume 8, issue 26, pages 1-12

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Published in Bulletin of The African Bird Club, in 2013, in volume 20, issue 1, pages 31-38

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Published in Forktail, in 2012, in volume 28, pages 144-146

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Published in Forktail, in 2011, in volume 27, pages 23-28

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Published in Bulletin of The African Bird Club, in 2017, in volume 24, issue 1, pages 94-95

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Published in The Wilson Bulletin, in 1990, in volume 102, issue 2, pages 264-278

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Published in Bulletin of The British Ornithologists' Club, in 1992, in volume 112, pages 235-244

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Published in The Auk, in 1911, in volume 28, pages 279-280

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Published in Bulletin of The African Bird Club, in 1998, in volume 5, issue 1, pages 39-45

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in 1879, pages 1-2

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Published in Bulletin of The British Ornithologists' Club, in 2008, in volume 128, issue 1, pages 17-27

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Published in Bulletin of The African Bird Club, in 2012, in volume 19, issue 2, pages 166-171

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Published in Bulletin of The African Bird Club, in 2015, in volume 22, issue 1, pages 36-42

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Published in Bulletin of The African Bird Club, in 2001, in volume 8, issue 1, pages 23-29

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Published in Entomological News, in 1922, in volume 33, pages 90

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Published in Scopus, in 1981, in volume 5, pages 85-101

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Published in The Wilson Bulletin, in 1931, in volume 43, issue 4, pages 293-305

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Published in Bulletin of The African Bird Club, in 2007, in volume 14, issue 1, pages 45-54

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Published in Bulletin of The African Bird Club, in 2013, in volume 20, issue 2, pages 156-176

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Published in Annals of the Carnegie Museum, in 1945, in volume 30, issue 11, pages 97-118

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Published in Asa Gray correspondence. Senders B-Ba, pages 1

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Published in Asa Gray correspondence. Senders B-Ba, pages 1

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Published in The Auk, in 1905, in volume 22, pages 172-175

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Published in Bulletin of The African Bird Club, in 2016, in volume 23, issue 2, pages 199-209

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Published in Bulletin of The African Bird Club, in 2009, in volume 16, issue 1, pages 37-52

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Published in Bulletin of The African Bird Club, in 2002, in volume 9, issue 1, pages 58-60

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Published in Bulletin of The African Bird Club, in 2004, in volume 11, issue 1, pages 80-83

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Published in Asa Gray correspondence. Senders B-Ba, in 1883, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1884, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1884, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1874, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1874, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1874, pages 1

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Published in Asa Gray correspondence. Senders B-Ba, in 1875, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1874, pages 1-2

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Published in Asa Gray correspondence. Senders B-Ba, in 1874, pages 1-4

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Published in Asa Gray correspondence. Senders B-Ba, in 1881, pages 1-2

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