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By: Goossen, J. Paul - Ealey, D. M. - Judge, Harry - Duncan, David C.Type: ArticleIn: The Canadian field-naturalistVolume: 109Series:Issue: 4Date: 1995Page Range: 391--402Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Davis, S K - Duncan, David C. - Skeel, MType: ArticleIn: The Wilson bulletinVolume: 111Series:Issue: 3Date: 1999Page Range: 389--396Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Duncan, David C.Type: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 2Date: 1983Page Range: 216--217Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Harris, Wayne C - Duncan, David C. - Franken, Renee J - Mckinnon, Donald T - Dundas, Heather AType: ArticleIn: The Wilson bulletinVolume: 117Series:Issue: 2Date: 2005Page Range: 165--171Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Duncan, David C.Type: ArticleIn: The Canadian field-naturalistVolume: 100Series:Issue: 1Date: 1986Page Range: 110--113Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: