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  1. By: Harris, Stuart A. - Ball, Peter W. (Peter William),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 118
    Issue: 2
    Date: 2004-04-01
    Page Range: 266--267
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Harris, Stuart A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 2
    Date: 2003-04-01
    Page Range: 304--306
    Publication Info: Ottawa Ottawa Field-Naturalists' Club