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  1. By: Armitage, Derek
    Type: Article
    In: The Canadian field-naturalist
    Volume: 112
    Issue: 4
    Date: 1998
    Page Range: 751--752
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Armitage, Derek
    Type: Article
    In: The Canadian field-naturalist
    Volume: 112
    Issue: 2
    Date: 1998
    Page Range: 381--382
    Publication Info: Ottawa Ottawa Field-Naturalists' Club