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By: Morgantini, Luigi E. - Hudson, Robert J.Type: ArticleIn: The Canadian field-naturalistVolume: 102Series:Issue: 1Date: 1988Page Range: 12--19Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Kuzyk, Gerald W. - Hudson, Robert J.Type: ArticleIn: The Canadian field-naturalistVolume: 122Series:Issue: 2Date: 2008-04-01Page Range: 179--181Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Donkor, Noble T. - Okello, Moses M. - Hudson, Robert J. - Bork, Edward W.Type: ArticleIn: The Canadian field-naturalistVolume: 117Series:Issue: 2Date: 2003-04-01Page Range: 196--202Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Morgantini, Luigi E. - Hudson, Robert J.Type: ArticleIn: The Canadian field-naturalistVolume: 95Series:Issue: 1Date: 1981Page Range: 69--74Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Kuzyk, Gerald W. - Hudson, Robert J.Type: ArticleIn: The Canadian field-naturalistVolume: 121Series:Issue: 3Date: 2007-07-01Page Range: 299--302Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: