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  1. By: Warkentin, Ian George, - Campbell, Christine E. - Powell, Kristin G. - Leonard, Tina D.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 3
    Date: 2003-07-01
    Page Range: 477--478
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Campbell, Christine E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 3
    Date: 1992
    Page Range: 400--402
    Publication Info: Ottawa Ottawa Field-Naturalists' Club