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  1. By: St. Louis, Vincent L - Barlow, Jon C. (Jon Charles),
    Type: Article
    In: The Wilson bulletin
    Volume: 99
    Issue: 4
    Date: 1987
    Page Range: 628--641
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: St. Louis, Vincent L - Barlow, Jon C. (Jon Charles),
    Type: Article
    In: The Wilson bulletin
    Volume: 103
    Issue: 1
    Date: 1991
    Page Range: 1--12
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-