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  1. By: Jannett, Frederick J. - Oehlenschlager, Richard J
    Type: Article
    In: The Canadian field-naturalist
    Volume: 111
    Issue: 3
    Date: 1997
    Page Range: 459--461
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Winker, Kevin - Oehlenschlager, Richard J - Ramos, Mario A - Zink, Robert M. - Rappole, John H - Warner, Dwain W. (Dwain Willard), ‏
    Type: Article
    In: The Wilson bulletin
    Volume: 104
    Issue: 4
    Date: 1992
    Page Range: 699--718
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-