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  1. By: Healey, M. C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 97
    Issue: 4
    Date: 1983
    Page Range: 427--433
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Healey, M. C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 92
    Issue: 3
    Date: 1978
    Page Range: 242--251
    Publication Info: Ottawa Ottawa Field-Naturalists' Club