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By: Pitelka, Frank AType: ArticleIn: The Wilson bulletinVolume: 52Series:Issue: 1Date: 1940Page Range: 3--18Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Pitelka, Frank AType: ArticleIn: The Wilson bulletinVolume: 55Series:Issue: 2Date: 1943Page Range: 88--114Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: