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  1. By: Zimmerling, J. Ryan
    Type: Article
    In: The Canadian field-naturalist
    Volume: 119
    Issue: 3
    Date: 2005-07-01
    Page Range: 377--380
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Zimmerling, J. Ryan - Ankney, C Davison
    Type: Article
    In: The Wilson bulletin
    Volume: 117
    Issue: 3
    Date: 2005
    Page Range: 280--290
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-