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  1. By: Robertson, Ian - Fraker, Mark A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 3
    Date: 1974
    Page Range: 367--367
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Fraker, Mark A. - Fraker, Russell N.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 94
    Issue: 4
    Date: 1980
    Page Range: 465--466
    Publication Info: Ottawa Ottawa Field-Naturalists' Club