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  1. By: Willock, Thomas A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 82
    Issue: 1
    Date: 1968
    Page Range: 18--23
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Willock, Thomas A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 85
    Issue: 2
    Date: 1971
    Page Range: 195--196
    Publication Info: Ottawa Ottawa Field-Naturalists' Club