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By: Welter, Wilfred AType: ArticleIn: The Wilson bulletinVolume: 48Series:Issue: 4Date: 1936Page Range: 256--269Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Welter, Wilfred AType: ArticleIn: The Wilson bulletinVolume: 47Series:Issue: 1Date: 1935Page Range: 3--34Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: