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  1. By: McEwan, Eoin H.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 71
    Issue: 3
    Date: 1957
    Page Range: 109--115
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: McEwan, Eoin H.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 72
    Issue: 3
    Date: 1958
    Page Range: 122--127
    Publication Info: Ottawa Ottawa Field-Naturalists' Club