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  1. By: Pengelly, Ian - Hamer, David M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 128
    Issue: 4
    Date: 2015-02-04
    Page Range: 400--407
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hamer, David M. - Pengelly, Ian
    Type: Article
    In: The Canadian field-naturalist
    Volume: 129
    Issue: 1
    Date: 2015-05-31
    Page Range: 8--14
    Publication Info: Ottawa Ottawa Field-Naturalists' Club