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  1. By: Nolan, Val - Thompson, Charles F
    Type: Article
    In: The Wilson bulletin
    Volume: 90
    Issue: 3
    Date: 1978
    Page Range: 353--358
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Lanyon, Scott M - Thompson, Charles F
    Type: Article
    In: The Wilson bulletin
    Volume: 96
    Issue: 3
    Date: 1984
    Page Range: 396--407
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-