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  1. By: Bergtold, W. H. (William Harry),
    Publication info: Buffalo, 1889
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Bergtold, W. H. (William Harry),
    Publication info: Denver, Col, The Kendrick-Bellamy co, 1917
    Holding Institution: Multiple institutions
  1. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 26
    Date: 1909
    Page Range: 196--198
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  2. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 27
    Date: 1910
    Page Range: 207--207
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  3. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 34
    Date: 1917
    Page Range: 488--489
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  4. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 6
    Date: 1889
    Page Range: 331--332
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  5. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Wilson bulletin
    Volume: 29
    Series: new
    Issue: 3
    Date: 1917
    Page Range: 113--129
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 32
    Date: 1915
    Page Range: 498--498
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  7. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 7
    Date: 1890
    Page Range: 209--210
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  8. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 23
    Date: 1906
    Page Range: 425--428
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  9. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 36
    Date: 1919
    Page Range: 198--205
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  10. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 134--134
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  11. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 34
    Date: 1917
    Page Range: 334--334
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  12. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 35
    Date: 1918
    Page Range: 77--78
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  13. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 30
    Date: 1913
    Page Range: 619--620
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  14. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 29
    Date: 1912
    Page Range: 327--336
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  15. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 33
    Date: 1916
    Page Range: 439--439
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  16. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 34
    Date: 1917
    Page Range: 341--342
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  17. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 30
    Date: 1913
    Page Range: 434--434
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  18. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 30
    Date: 1913
    Page Range: 40--73
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  19. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 32
    Date: 1915
    Page Range: 134--134
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-