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By: Volkman, Nicholas J - Trivelpiece, WayneType: ArticleIn: The Wilson bulletinVolume: 93Series:Issue: 2Date: 1981Page Range: 243--248Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Volkman, Nicholas J - Ralls, KatherineType: ArticleIn: Zoologica : scientific contributions of the New York Zoological SocietyVolume: 58Series:Issue:Date: 1973Page Range: 55--57Publication Info: New York,Subjects: