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By: Putnam, Loren SType: ArticleIn: The Wilson bulletinVolume: 61Series:Issue: 3Date: 1949Page Range: 141--182Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Maxwell, George R - Putnam, Loren SType: ArticleIn: The Wilson bulletinVolume: 80Series:Issue: 4Date: 1968Page Range: 467--478Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: