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By: Johnson, Greg - Freedman, BillType: ArticleIn: The Canadian field-naturalistVolume: 116Series:Issue: 3Date: 2002Page Range: 475--487Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Woodley, Stephen J. - Johnson, Greg - Freedman, Bill - Kirk, David AnthonyType: ArticleIn: The Canadian field-naturalistVolume: 120Series:Issue: 3Date: 2006-07-01Page Range: 298--306Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: