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  1. By: Mengel, Robert M.
    Type: Article
    In: The Wilson bulletin
    Volume: 54
    Issue: 3
    Date: 1942
    Page Range: 211--211
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Martin, Larry D. - Mengel, Robert M.
    Type: Article
    In: Contributions in science
    Volume: 330
    Date: 1980-09-15
    Page Range: 75--85
    Publication Info: Los Angeles, Calif, The Museum, [1957]-
  3. By: Warner, Dwain W. (Dwain Willard), ‏ - Mengel, Robert M.
    Type: Article
    In: The Wilson bulletin
    Volume: 63
    Issue: 4
    Date: 1951
    Page Range: 288--295
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Mengel, Robert M.
    Type: Article
    In: The Wilson bulletin
    Volume: 65
    Issue: 3
    Date: 1953
    Page Range: 145--151
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Mengel, Robert M. - Jenkinson, Marion Anne
    Type: Article
    In: The Wilson bulletin
    Volume: 82
    Issue: 1
    Date: 1970
    Page Range: 74--78
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-