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By: Fraser, DavidType: ArticleIn: The Canadian field-naturalistVolume: 102Series:Issue: 4Date: 1988Page Range: 748--749Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Copley, Darren - Fraser, David - Finlay, J. CampbellType: ArticleIn: The Canadian field-naturalistVolume: 113Series:Issue: 2Date: 1999Page Range: 226--229Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: