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  1. By: Simkin, Donald W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 80
    Issue: 3
    Date: 1966
    Page Range: 144--146
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Simkin, Donald W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 82
    Issue: 1
    Date: 1968
    Page Range: 49--49
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Simkin, Donald W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 77
    Issue: 1
    Date: 1963
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club