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  1. By: Knopf, Fritz L., - Bachman, V. C.
    Type: Article
    In: The Great Basin naturalist
    Volume: 37
    Date: 1977
    Page Range: 247--251
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,
  2. By: Dinsmore, Stephen J - Knopf, Fritz L.,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 119
    Issue: 4
    Date: 2005-10-01
    Page Range: 532--536
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Knopf, Fritz L., - Street, Joseph C
    Type: Article
    In: The Wilson bulletin
    Volume: 86
    Issue: 4
    Date: 1974
    Page Range: 428--434
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Eddleman, William R - Patterson, Craig T - Knopf, Fritz L.,
    Type: Article
    In: The Wilson bulletin
    Volume: 97
    Issue: 4
    Date: 1985
    Page Range: 463--472
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Skagen, Susan K - Knopf, Fritz L.,
    Type: Article
    In: The Wilson bulletin
    Volume: 106
    Issue: 1
    Date: 1994
    Page Range: 91--105
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Plumb, Regan E - Knopf, Fritz L., - Anderson, Stanley H.
    Type: Article
    In: The Wilson bulletin
    Volume: 117
    Issue: 1
    Date: 2005
    Page Range: 15--22
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  7. By: Dreitz, Victoria J - Wunder, Michael B - Knopf, Fritz L.,
    Type: Article
    In: The Wilson bulletin
    Volume: 117
    Issue: 2
    Date: 2005
    Page Range: 128--132
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  8. By: Knopf, Fritz L., - Rupert, Jeffery R
    Type: Article
    In: The Wilson bulletin
    Volume: 108
    Issue: 1
    Date: 1996
    Page Range: 28--35
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  9. By: Dinsmore, Stephen J - Knopf, Fritz L.,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 113
    Issue: 3
    Date: 1999
    Page Range: 516--517
    Publication Info: Ottawa Ottawa Field-Naturalists' Club