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By: Sibley, Ch G - Corbin, Kendall W. - Ahlquist, Jon EType: ArticleIn: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, BonnVolume: 19Series:Issue:Date: 1968Page Range: 235--248Publication Info: Bonn, Das Forschungsinstitut,Subjects:
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By: Sibley, Charles G - Ahlquist, Jon EType: ArticleIn: BulletinVolume: 39Series:Issue:Date: 1972-12-01Page Range: 1--276Publication Info: New Haven, The Museum,Subjects:
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By: Sibley, Charles G - Ahlquist, Jon EType: ArticleIn: The Wilson bulletinVolume: 94Series:Issue: 2Date: 1982Page Range: 114--128Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: