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By: Jung, Robin E - Morton, Eugene S - Fleischer, Robert CType: ArticleIn: The Wilson bulletinVolume: 106Series:Issue: 2Date: 1994Page Range: 189--202Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Olson, Storrs L. - Fleischer, Robert C - Fisher, Clemency T. - Bermingham, EldredgeType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 125Series:Issue:Date: 2005Page Range: 31--42Publication Info: London, British Ornithologists' Club, 1893-Subjects: