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By: Franklin, Alan B - Ward, J. P.Type: ArticleIn: The journal of raptor researchVolume: 27Series:Issue: 1Date: 1993Page Range: 55--55Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Franklin, Alan B - Clark, Deborah A - Clark, David BType: ArticleIn: The Wilson bulletinVolume: 91Series:Issue: 2Date: 1979Page Range: 202--221Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Hunter, J E - Gutiérrez, Ralph J. - Franklin, Alan B - Olson, DType: ArticleIn: The journal of raptor researchVolume: 28Series:Issue: 4Date: 1994Page Range: 232--235Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: