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  1. By: Schmutz, Joel A
    Type: Article
    In: The Wilson bulletin
    Volume: 112
    Issue: 2
    Date: 2000
    Page Range: 261--263
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Schmutz, Joel A - Braun, Clait E. - Andelt, William F
    Type: Article
    In: The Wilson bulletin
    Volume: 101
    Issue: 4
    Date: 1989
    Page Range: 591--598
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-