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By: Clark, Karen L - Euler, David - Armstrong, EdwardType: ArticleIn: The Wilson bulletinVolume: 95Series:Issue: 1Date: 1983Page Range: 77--96Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Armstrong, Edward - Euler, DavidType: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 2Date: 1983Page Range: 200--207Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Heimberger, Marianne - Euler, David - Barr, JackType: ArticleIn: The Wilson bulletinVolume: 95Series:Issue: 3Date: 1983Page Range: 431--439Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Euler, David - Snider, Barry - Timmerman, H. R.Type: ArticleIn: The Canadian field-naturalistVolume: 90Series:Issue: 1Date: 1976Page Range: 17--21Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: