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By: Healey, M. C.Type: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 4Date: 1983Page Range: 427--433Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Healey, M. C.Type: ArticleIn: The Canadian field-naturalistVolume: 92Series:Issue: 3Date: 1978Page Range: 242--251Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: