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  1. By: Gau, Robert J. - McLoughlin, Philip D. - Case, Ray - Cluff, H. Dean - Mulders, Robert - Messier, François
    Type: Article
    In: The Canadian field-naturalist
    Volume: 118
    Issue: 2
    Date: 2004-04-01
    Page Range: 239--242
    Publication Info: Ottawa Ottawa Field-Naturalists' Club