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  1. By: Imhof, Thomas A
    Type: Article
    In: The Wilson bulletin
    Volume: 65
    Issue: 3
    Date: 1953
    Page Range: 184--195
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Imhof, Thomas A
    Type: Article
    In: The Wilson bulletin
    Volume: 62
    Issue: 4
    Date: 1950
    Page Range: 210--210
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-