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  1. By: Holt, Denver W - Robertson, Maud W. - Ricks, John T.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 1
    Date: 1995
    Page Range: 121--122
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Holt, Denver W - Maples, Michael T. - Savok, Chris
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 3
    Date: 2003-07-01
    Page Range: 466--468
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Holt, Denver W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 4
    Date: 1990
    Page Range: 596--597
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Holt, Denver W
    Type: Article
    In: The Wilson bulletin
    Volume: 105
    Issue: 3
    Date: 1993
    Page Range: 490--496
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Holt, Denver W - Leroux, Leslie A
    Type: Article
    In: The Wilson bulletin
    Volume: 108
    Issue: 1
    Date: 1996
    Page Range: 123--128
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Holt, Denver W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 2
    Date: 1994
    Page Range: 240--241
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Holt, Denver W - Andrews, Edith - Claflin, Nancy
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 3
    Date: 1991
    Page Range: 382--385
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Holt, Denver W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 3
    Date: 1992
    Page Range: 352--356
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Holt, Denver W
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 3
    Date: 1997
    Page Range: 448--450
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Holt, Denver W
    Type: Article
    In: The Wilson bulletin
    Volume: 105
    Issue: 3
    Date: 1993
    Page Range: 497--503
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  11. By: Cromrich, Lee A - Holt, Denver W - Leasure, Shawne M
    Type: Article
    In: The journal of raptor research
    Volume: 36
    Issue: 1
    Date: 2002
    Page Range: 58--65
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  12. By: Holt, Denver W - Tiffney, Wesley N.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 115
    Issue: 2
    Date: 2001
    Page Range: 351--352
    Publication Info: Ottawa Ottawa Field-Naturalists' Club