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  1. By: Rodway, Michael S - Regehr, Heidi M - Chardine, John W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 1
    Date: 2003-01-01
    Page Range: 70--75
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Regehr, Heidi M
    Type: Article
    In: The Wilson bulletin
    Volume: 115
    Issue: 4
    Date: 2003
    Page Range: 423--430
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-