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Authors: Timothy C Roth | Steven L Lima | William E Vetter

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Authors: David G Allan | Doug Goode

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Authors: Lawrence F Gall | David C Hawks

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Authors: K R Moore | C J Henny

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Authors: Helmut C Mueller | Daniel D Berger

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Authors: Charles R Keyes

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Authors: Merritt Cary

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Authors: Fred M Baumgartner

Published in The Wilson Bulletin, in 1949, in volume 61, issue 3, pages 187

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Authors: John Craighead | Frank Craighead

Published in The Wilson Bulletin, in 1940, in volume 52, issue 4, pages 241-248

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Authors: B E Wilson | C Coldren | M Coldren | F Chavezramirez | T Archer

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Authors: C J Henny | L J Blus | T E Kaiser

Published in Raptor Research, in 1984, in volume 18, issue 2, pages 41-48

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Authors: Louis B Bishop

Published in The Auk, in 1901, in volume 18, pages 192-193

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Published in Records of The South Australian Museum, in 1954, in volume 11, pages 189-246

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Authors: L R Ditto

Published in Raptor Research, in 1983, in volume 17, issue 3, pages 91

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Authors: Lawrence Ward

Published in The Wilson Bulletin, in 1934, in volume 46, issue 4, pages 248-253

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Authors: Mark Judson | David C Chamberlin

Published in Journal of Arachnology, in 1998, in volume 26, pages 411-418

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Authors: Review By: C V Piper

Published in Torreya, in 1915, in volume 15, issue 6, pages 136-137

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Authors: David C Hilton

Published in The Wilson Bulletin, in 1921, in volume 33, issue 1, pages 33

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Authors: S W Hoffman | J C Bednarz | W R Deragon

Published in Journal of Raptor Research, in 1993, in volume 27, issue 1, pages 73

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Authors: C E Moorman | D L Howell | B R Chapman

Published in Journal of Raptor Research, in 1999, in volume 33, issue 3, pages 248-251

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Authors: Milton W Weller | I C Adams | B J Rose

Published in The Wilson Bulletin, in 1955, in volume 67, issue 3, pages 189-193

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Authors: J C Franson | N J Thomas | M R Smith | A H Robbins | S Newman | P C Mccartin

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Authors: C V Olson | D P Arsenault

Published in Journal of Raptor Research, in 2000, in volume 34, issue 3, pages 157-166

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Published in The Auk, in 1920, in volume 37, pages 477

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Authors: Clint W Boal

Published in Journal of Raptor Research, in 2001, in volume 35, issue 3, pages 253-256

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Authors: Herbert Friedmann

Published in Jour Washington Acad Sci, in 1934, in volume 24, pages 310-318

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Authors: Ruthven Deane

Published in The Wilson Bulletin, in 1905, in volume 17, issue 1, pages 13-14

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