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By: Bagg, Aaron M - Gunn, William W H - Miller, D S - Nichols, John T. (John Treadwell), - Smith, Winnifred - Wolfarth, F. P.Type: ArticleIn: The Wilson bulletinVolume: 62Series:Issue: 1Date: 1950Page Range: 5--19Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: