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  1. By: Ballard, Warren B - Cronin, Matthew A - Robards, Martin D. - Follmann, Erich H.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 114
    Issue: 3
    Date: 2000
    Page Range: 493--494
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Smith, Martin E. - Follmann, Erich H.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 1
    Date: 1993
    Page Range: 97--99
    Publication Info: Ottawa Ottawa Field-Naturalists' Club