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By: Engstrom, R Todd - Crawford, Robert L - Baker, W. Wilson.Type: ArticleIn: The Wilson bulletinVolume: 96Series:Issue: 3Date: 1984Page Range: 437--450Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Engstrom, R Todd - Sanders, Felicia JType: ArticleIn: The Wilson bulletinVolume: 109Series:Issue: 2Date: 1997Page Range: 203--217Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: