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  1. By: van den Driessche, Ruth - McConnell, Steven. - Hooper, Tracey D.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 1
    Date: 1994
    Page Range: 89--91
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: McConnell, Steven. - van den Driessche, Ruth - Hooper, Tracey D. - Roberts, G. L. - Roberts, Anna
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 2
    Date: 1993
    Page Range: 222--223
    Publication Info: Ottawa Ottawa Field-Naturalists' Club