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By: Hein, Dale - Haugen, Arnold OType: ArticleIn: The Wilson bulletinVolume: 78Series:Issue: 3Date: 1966Page Range: 301--308Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Martin, Elwood M - Haugen, Arnold OType: ArticleIn: The Wilson bulletinVolume: 72Series:Issue: 3Date: 1960Page Range: 238--243Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: