Published in The Wilson Bulletin, in 1931, in volume 43, issue 4, pages 293-305
Created: 2016-11-27, modified: 2016-11-27
Published in Bulletin of The African Bird Club, in 2005, in volume 12, issue 1, pages 24-27
Created: 2021-02-23, modified: 2021-02-23
Published in Raptor Research, in 1983, in volume 17, issue 3, pages 77-84
Created: 2017-04-08, modified: 2017-04-08
Published in Forktail, in 1998, in volume 13, pages 33-68
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Published in Scopus, in 1993, in volume 15, pages 141-163
Created: 2014-03-20, modified: 2014-03-20
Published in Scopus, in 1992, in volume 14, pages 129-158
Created: 2014-03-20, modified: 2014-03-20
Published in American Malacological Bulletin, in 1984, in volume 2, pages 80
Created: 2014-09-21, modified: 2014-09-21
Published in Bulletin of The African Bird Club, in 1999, in volume 6, issue 2, pages 137
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Published in The Auk, in 1919, in volume 36, pages 497-513
Created: 2013-03-08, modified: 2013-03-08
Published in The Wilson Bulletin, in 1926, in volume 38, issue 2, pages 83-91
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Published in Bulletin of the Brooklyn Entomological Society, in 1956, in volume 51, pages 68
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Published in The Auk, in 1918, in volume 35, pages 373-374
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Published in The Auk, in 1914, in volume 31, pages 137
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Published in The Wilson Bulletin, in 1942, in volume 54, issue 2, pages 148
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Published in Bulletin of The British Ornithologists' Club, in 1969, in volume 89, pages 33-35
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Published in Jour Bombay Nat Hist Soc, in 1952, in volume 50, issue 3, pages 573-593
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Published in Forktail, in 2002, in volume 18, pages 11-44
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Published in Scopus, in 1981, in volume 5, pages 116-120
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Published in The Wilson Bulletin, in 1909, in volume 21, issue 2, pages 95-96
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Published in Bulletin of The African Bird Club, in 2015, in volume 22, issue 1, pages 86-88
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Published in Jour Bombay Nat Hist Soc, in 1951, in volume 49, issue 4, pages 695-728
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Published in Scopus, in 1978, in volume 2, pages 35-39
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Published in The Wilson Bulletin, in 1905, in volume 17, issue 3, pages 84-88
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Published in Journal of Raptor Research, in 1989, in volume 23, issue 3, pages 99-102
Created: 2017-04-07, modified: 2017-04-07
Published in Journal of Raptor Research, in 1994, in volume 28, issue 4, pages 220-225
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Published in Notes From The Leyden Museum, in 1911, in volume 34, issue 1, pages 55-58
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Published in Western Australian Naturalist, in 1967, in volume 10, issue 7, pages 151-153
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Published in The Wilson Bulletin, in 1917, in volume 29, issue 1, pages 18-29
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Published in The Wilson Bulletin, in 1918, in volume 30, issue 2, pages 34-48
Created: 2016-11-27, modified: 2016-11-27
Published in Bulletin of The African Bird Club, in 2008, in volume 15, issue 1, pages 36-52
Created: 2021-02-23, modified: 2021-02-23
Published in The Auk, in 1919, in volume 36, pages 151-152
Created: 2013-03-08, modified: 2013-03-08
Published in Western Australian Naturalist, in 1969, in volume 11, issue 4, pages 90-97
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Published in The Wilson Bulletin, in 1920, in volume 32, issue 4, pages 103-122
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Published in Emu, in 1922, in volume 22, pages 67
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Published in The Auk, in 1918, in volume 35, pages 85
Created: 2013-03-08, modified: 2013-03-08
Published in Bulletin of The British Ornithologists' Club, in 1983, in volume 103, pages 77-79
Created: 2012-12-03, modified: 2012-12-03
Published in Journal of The Bombay Natural History Society, in 1958, in volume 55, pages 345-351
Created: 2015-08-31, modified: 2015-08-31
Published in Journal of The Bombay Natural History Society, in 1951, in volume 49, pages 784
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Published in Rhodora, in 1907, in volume 9, issue 102, pages 108
Created: 2016-07-19, modified: 2016-07-19
Published in Raptor Research, in 1976, in volume 10, issue 1, pages 1-8
Created: 2017-04-08, modified: 2017-04-08
Published in The Wilson Bulletin, in 1923, in volume 35, issue 2, pages 79-99
Created: 2016-11-27, modified: 2016-11-27
Published in Emu, in 1922, in volume 22, pages 138-140
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Published in Journal of Raptor Research, in 1994, in volume 28, issue 4, pages 259-262
Created: 2017-04-07, modified: 2017-04-07
Published in Bulletin of The African Bird Club, in 2006, in volume 13, issue 1, pages 45-48
Created: 2021-02-23, modified: 2021-02-23
Published in The Auk, in 1917, in volume 34, pages 230-231
Created: 2013-03-07, modified: 2013-03-08
Published in Bulletin of The African Bird Club, in 1996, in volume 3, issue 2, pages 90-95
Created: 2021-02-10, modified: 2021-02-10
Published in Journal of The Royal Society of Western Australia, in 2007, in volume 90, issue 4, pages 219-227
Created: 2020-06-15, modified: 2020-06-15
Published in Journal of Raptor Research, in 1991, in volume 25, issue 3, pages 63-67
Created: 2017-04-07, modified: 2017-04-07
Published in Rhodora, in 1969, in volume 71, issue 788, pages 510-523
Created: 2014-06-16, modified: 2016-07-26
Published in Jour Bombay Nat Hist Soc, in 1953, in volume 51, issue 2, pages 369-377
Created: 2015-08-31, modified: 2015-08-31