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  1. By: Gammonley, James H - Heitmeyer, Mickey E
    Type: Article
    In: The Wilson bulletin
    Volume: 102
    Issue: 4
    Date: 1990
    Page Range: 672--683
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Gammonley, James H
    Type: Article
    In: The Wilson bulletin
    Volume: 107
    Issue: 1
    Date: 1995
    Page Range: 64--72
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-