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  1. By: Stephenson, Thomas R. - Van Ballenberghe, Victor
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 2
    Date: 1995
    Page Range: 251--253
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Stephenson, Thomas R. - Van Ballenberghe, Victor
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 2
    Date: 1995
    Page Range: 253--255
    Publication Info: Ottawa Ottawa Field-Naturalists' Club