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  1. By: Michaud, Wendy K. - Perry, Robert C. - Dempson, J. Brian - Shears, Milton - Power, Michael
    Type: Article
    In: The Canadian field-naturalist
    Volume: 124
    Issue: 2
    Date: 2010-04-01
    Page Range: 113--117
    Publication Info: Ottawa Ottawa Field-Naturalists' Club