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  1. By: Schamel, Douglas L.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 92
    Issue: 1
    Date: 1978
    Page Range: 55--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Schamel, Douglas L. - Tracy, Diane M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 4
    Date: 1986
    Page Range: 562--562
    Publication Info: Ottawa Ottawa Field-Naturalists' Club