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  1. By: Heintzelman, Donald S - Nagy, Alexander C
    Type: Article
    In: The Wilson bulletin
    Volume: 80
    Issue: 3
    Date: 1968
    Page Range: 306--311
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Heintzelman, Donald S - Macclay, Robert
    Type: Article
    In: The Wilson bulletin
    Volume: 83
    Issue: 2
    Date: 1971
    Page Range: 129--131
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  3. By: Heintzelman, Donald S
    Type: Article
    In: The Wilson bulletin
    Volume: 73
    Issue: 3
    Date: 1961
    Page Range: 262--267
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Heintzelman, Donald S
    Type: Article
    In: The Wilson bulletin
    Volume: 76
    Issue: 4
    Date: 1964
    Page Range: 323--330
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-