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  1. By: Maxson, Stephen J - Bernstein, Neil P
    Type: Article
    In: The Wilson bulletin
    Volume: 94
    Issue: 3
    Date: 1982
    Page Range: 269--281
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Bernstein, Neil P - Maxson, Stephen J
    Type: Article
    In: The Wilson bulletin
    Volume: 97
    Issue: 4
    Date: 1985
    Page Range: 450--462
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-