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  1. By: Newman, Robert J
    Type: Article
    In: The Canadian field-naturalist
    Volume: 66
    Issue: 3
    Date: 1952
    Page Range: 87--87
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Lowery, George H - Newman, Robert J
    Type: Article
    In: The Wilson bulletin
    Volume: 63
    Issue: 4
    Date: 1951
    Page Range: 315--322
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-