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  1. By: Hoefs, Manfred - Merchant, Philip J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 3
    Date: 1997
    Page Range: 458--459
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Jung, Thomas S. - Merchant, Philip J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 119
    Issue: 4
    Date: 2005-10-01
    Page Range: 580--581
    Publication Info: Ottawa Ottawa Field-Naturalists' Club