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  1. By: Fisher, Shannon J. - Willis, David W. - Olson, Michael M. - Krentz, Steven C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 116
    Issue: 1
    Date: 2002
    Page Range: 26--41
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Adams, W. Eugene - Kallemeyn, Larry W. - Willis, David W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 120
    Issue: 1
    Date: 2006-01-01
    Page Range: 71--82
    Publication Info: Ottawa Ottawa Field-Naturalists' Club