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  1. By: Nice, Margaret M - Thomas, Ruth Harris
    Type: Article
    In: The Wilson bulletin
    Volume: 60
    Issue: 3
    Date: 1948
    Page Range: 139--158
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Thomas, Ruth Harris
    Type: Article
    In: The Wilson bulletin
    Volume: 58
    Issue: 3
    Date: 1946
    Page Range: 143--183
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-