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  1. By: Nagle, R. L. - van Loben Sels, J. D. - Congdon, Justin D.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 4
    Date: 1995
    Page Range: 464--466
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Congdon, Justin D. - Gotte, Steve W. - McDiarmid, Roy W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 2
    Date: 1992
    Page Range: 241--248
    Publication Info: Ottawa Ottawa Field-Naturalists' Club