Published in Torreya, in 1936, in volume 36, issue 2, pages 35-36
Created: 2022-12-14, modified: 2022-12-14![](https://www.biodiversitylibrary.org/pagethumb/52155292,60,60)
Published in The Wilson Bulletin, in 1942, in volume 54, issue 3, pages 211
Created: 2016-12-04, modified: 2016-12-04![](https://www.biodiversitylibrary.org/pagethumb/40814797,60,60)
Published in Bulletin of The British Ornithologists' Club, in 1965, in volume 85, pages 89-90
Created: 2012-12-03, modified: 2012-12-03![](https://www.biodiversitylibrary.org/pagethumb/51286951,60,60)
Published in Raptor Research, in 1982, in volume 16, issue 2, pages 58-59
Created: 2017-04-08, modified: 2017-04-08![](https://www.biodiversitylibrary.org/pagethumb/48583221,60,60)
Published in Journal of The Bombay Natural History Society, in 2001, in volume 98, issue 1, pages 12-17
Created: 2015-10-11, modified: 2015-10-11![](https://www.biodiversitylibrary.org/pagethumb/51315814,60,60)
Published in Journal of Raptor Research, in 1997, in volume 31, issue 3, pages 288-289
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/51314086,60,60)
Published in Raptor Research, in 1982, in volume 16, issue 4, pages 97-103
Created: 2017-04-08, modified: 2017-04-08![](https://www.biodiversitylibrary.org/pagethumb/30002723,60,60)
Published in Entomologist's Record and Journal of Variation, in 1968, in volume 80, pages 329
Created: 2016-09-01, modified: 2016-09-01![](https://www.biodiversitylibrary.org/pagethumb/52298506,60,60)
Published in The Wilson Bulletin, in 1938, in volume 50, issue 3, pages 202
Created: 2016-12-19, modified: 2016-12-19![](https://www.biodiversitylibrary.org/pagethumb/51348096,60,60)
Published in Journal of Raptor Research, in 2002, in volume 36, issue 1, pages 2
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/51922328,60,60)
Published in Raptor Research, in 1984, in volume 18, issue 3, pages 111-113
Created: 2017-04-08, modified: 2017-04-08![](https://www.biodiversitylibrary.org/pagethumb/51314121,60,60)
Published in Raptor Research, in 1982, in volume 16, issue 4, pages 132-134
Created: 2017-04-08, modified: 2017-04-08![](https://www.biodiversitylibrary.org/pagethumb/52240797,60,60)
Published in The Wilson Bulletin, in 1937, in volume 49, issue 1, pages 3-10
Created: 2016-12-11, modified: 2016-12-11![](https://www.biodiversitylibrary.org/pagethumb/12222079,60,60)
Published in Bull. Zool. Nom., in 1964, in volume 21, pages 226
Created: 2009-12-23, modified: 2023-05-10![](https://www.biodiversitylibrary.org/pagethumb/51348149,60,60)
Published in Journal of Raptor Research, in 2002, in volume 36, issue 1, pages 55-61
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/51315749,60,60)
Published in Journal of Raptor Research, in 1997, in volume 31, issue 3, pages 223-227
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/51353546,60,60)
Published in Journal of Raptor Research, in 2004, in volume 38, issue 3, pages 270-275
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/40825234,60,60)
Published in Bulletin of The British Ornithologists' Club, in 1982, in volume 102, pages 41-42
Created: 2012-12-03, modified: 2012-12-03![](https://www.biodiversitylibrary.org/pagethumb/44689256,60,60)
Published in Bonner Zoologische Beiträge, in 1978, in volume 29, pages 441-445
Created: 2014-05-17, modified: 2014-05-17![](https://www.biodiversitylibrary.org/pagethumb/52615722,60,60)
Published in The Wilson Bulletin, in 1975, in volume 87, issue 4, pages 506-513
Created: 2017-08-22, modified: 2017-08-22![](https://www.biodiversitylibrary.org/pagethumb/51326014,60,60)
Published in Journal of Raptor Research, in 2000, in volume 34, issue 1, pages 48-52
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/4860661,60,60)
Published in Rhodora, in 1982, in volume 84, issue 838, pages 297-300
Created: 2014-06-16, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/40551497,60,60)
Published in Bulletin of The British Ornithologists' Club, in 1956, in volume 76, pages 136-139
Created: 2013-01-29, modified: 2013-01-29![](https://www.biodiversitylibrary.org/pagethumb/61798181,60,60)
Published in The Australian Entomologist, in 2006, in volume 33, issue 2, pages 103-110
Created: 2022-09-30, modified: 2022-09-30![](https://www.biodiversitylibrary.org/pagethumb/15943741,60,60)
Published in The Auk, in 1896, in volume 13, pages 256-257
Created: 2013-03-07, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/28549315,60,60)
Published in Botanical Gazette, in 1890, in volume 15, issue 8, pages 204-209
Created: 2017-03-14, modified: 2017-03-14![](https://www.biodiversitylibrary.org/pagethumb/38668519,60,60)
Published in The Australian Zoologist, in 1918, in volume 1, pages 171-175
Created: 2018-08-03, modified: 2018-08-03![](https://www.biodiversitylibrary.org/pagethumb/34599342,60,60)
Published in Proceedings of The Biological Society of Washington, in 1941, in volume 54, pages 189-191
Created: 2011-07-31, modified: 2011-07-31![](https://www.biodiversitylibrary.org/pagethumb/51320273,60,60)
Published in Journal of Raptor Research, in 1987, in volume 21, issue 2, pages 67
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/16314931,60,60)
Published in The Auk, in 1909, in volume 26, pages 153-164
Created: 2013-03-07, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/16317405,60,60)
Published in The Auk, in 1891, in volume 8, pages 113
Created: 2013-03-07, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/15933746,60,60)
Published in The Auk, in 1908, in volume 25, pages 251-268
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/15936501,60,60)
Published in The Auk, in 1905, in volume 22, pages 158-167
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/15659421,60,60)
Published in Proc. Calif. Acad. Sci., in 1970, in volume 38, pages 273-287
Created: 2009-12-24, modified: 2011-06-21![](https://www.biodiversitylibrary.org/pagethumb/48067996,60,60)
Published in Journal of The Bombay Natural History Society, in 1968, in volume 65, pages 473-477
Created: 2015-08-31, modified: 2015-08-31![](https://www.biodiversitylibrary.org/pagethumb/51328738,60,60)
Published in Journal of Raptor Research, in 2000, in volume 34, issue 3, pages 245-246
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/15383288,60,60)
Published in Proceedings of The United States National Museum, in 1885, in volume 8, pages 348-350
Created: 2011-06-30, modified: 2011-06-30![](https://www.biodiversitylibrary.org/pagethumb/51348104,60,60)
Published in Journal of Raptor Research, in 2002, in volume 36, issue 1, pages 10-17
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/51314092,60,60)
Published in Raptor Research, in 1982, in volume 16, issue 4, pages 103-109
Created: 2017-04-08, modified: 2017-04-08![](https://www.biodiversitylibrary.org/pagethumb/48240913,60,60)
Published in Journal of The Bombay Natural History Society, in 1979, in volume 76, issue 3, pages 514-515
Created: 2015-08-25, modified: 2015-08-25![](https://www.biodiversitylibrary.org/pagethumb/3100333,60,60)
Published in Canadian Entomologist, in 1908, in volume 40, pages 199-201
Created: 2011-08-11, modified: 2017-01-06![](https://www.biodiversitylibrary.org/pagethumb/15982635,60,60)
Published in The Auk, in 1916, in volume 33, pages 197
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/43035789,60,60)
Published in Scopus, in 1978, in volume 2, pages 72-73
Created: 2014-03-20, modified: 2014-03-20![](https://www.biodiversitylibrary.org/pagethumb/29955652,60,60)
Published in Botanical Gazette, in 1898, in volume 25, issue 1, pages 39-46
Created: 2017-03-14, modified: 2017-03-14![](https://www.biodiversitylibrary.org/pagethumb/16019505,60,60)
Published in The Auk, in 1914, in volume 31, pages 309-333
Created: 2013-03-08, modified: 2013-03-08![](https://www.biodiversitylibrary.org/pagethumb/51113768,60,60)
Published in Zoologica, in 1962, in volume 47, issue 15, pages 183-198
Created: 2016-11-07, modified: 2016-11-07![](https://www.biodiversitylibrary.org/pagethumb/51320293,60,60)
Published in Journal of Raptor Research, in 1987, in volume 21, issue 3, pages 85-94
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/48228907,60,60)
Published in Journal of The Bombay Natural History Society, in 1981, in volume 78, issue 2, pages 379-380
Created: 2015-08-25, modified: 2015-08-25![](https://www.biodiversitylibrary.org/pagethumb/51348114,60,60)
Published in Journal of Raptor Research, in 2002, in volume 36, issue 1, pages 20-24
Created: 2017-04-07, modified: 2017-04-07![](https://www.biodiversitylibrary.org/pagethumb/15982637,60,60)
Published in The Auk, in 1916, in volume 33, pages 199
Created: 2013-03-08, modified: 2013-03-08