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By: Gottfried, Bradley M - Andrews, Kathryn - Haug, MichaelaType: ArticleIn: The Wilson bulletinVolume: 97Series:Issue: 2Date: 1985Page Range: 183--190Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Gottfried, Bradley M - Franks, Edwin CType: ArticleIn: The Wilson bulletinVolume: 87Series:Issue: 3Date: 1975Page Range: 374--383Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: