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By: Nelson, Colleen HelgesonType: ArticleIn: The Wilson bulletinVolume: 88Series:Issue: 1Date: 1976Page Range: 1--3Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Nelson, Colleen HelgesonType: ArticleIn: The Canadian field-naturalistVolume: 110Series:Issue: 2Date: 1996Page Range: 288--293Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Nelson, Colleen HelgesonType: ArticleIn: The Wilson bulletinVolume: 88Series:Issue: 1Date: 1976Page Range: 4--15Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: