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  1. By: Moruzzi, Trina L. - Royar, Kimberly J. - Grove, Clayton - Brooks, Robert T. - Bernier, Christopher - Thompson, Frank R - DeGraaf, Richard M. - Fuller, Todd K
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 2
    Date: 2003-04-01
    Page Range: 190--195
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Burhans, Dirk E ., - Thompson, Frank R
    Type: Article
    In: The Wilson bulletin
    Volume: 111
    Issue: 2
    Date: 1999
    Page Range: 210--215
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-