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  1. By: DeGraaf, Richard M. - Witman, Gretchin M. - Rudis, Deborah D. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Amherst, Mass, Northeastern Forest Experiment Station and Eastern Region, Forest Service, 1981
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: DeGraaf, Richard M. - Rudis, Deborah D. - Northeastern Forest Experiment Station (Radnor, Pa.) - United States. Forest Service. Eastern Region.
    Publication info: [Amherst, Mass.?], Northeastern Forest Experiment Station, [1981?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: DeGraaf, Richard M. - Tilghman, Nancy G. - Intermountain Forest and Range Experiment Station (Ogden, Utah) - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) - United States. Forest Service.
    Publication info: Ogden, Utah, Intermountain Forest and Range Experiment Station, Rocky Mountain Forest and Range Experiment Station, and Intermountain Region, 1980
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Moruzzi, Trina L. - Royar, Kimberly J. - Grove, Clayton - Brooks, Robert T. - Bernier, Christopher - Thompson, Frank R - DeGraaf, Richard M. - Fuller, Todd K
    Type: Article
    In: The Canadian field-naturalist
    Volume: 117
    Issue: 2
    Date: 2003-04-01
    Page Range: 190--195
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Griesemer, Sara J. - Fuller, Todd K - DeGraaf, Richard M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 110
    Issue: 4
    Date: 1996
    Page Range: 634--637
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: King, David I - Griffin, Curtice R - DeGraaf, Richard M.
    Type: Article
    In: The Wilson bulletin
    Volume: 109
    Issue: 2
    Date: 1997
    Page Range: 239--245
    Publication Info: Columbus, Ohio Wilson Ornithological Society 1894-
  4. By: DeGraaf, Richard M. - Maier, T J
    Type: Article
    In: The Wilson bulletin
    Volume: 108
    Issue: 3
    Date: 1996
    Page Range: 535--539
    Publication Info: Columbus, Ohio Wilson Ornithological Society 1894-
  5. By: Smith, Harvey R - DeGraaf, Richard M. - Miller, Richard S
    Type: Article
    In: The journal of raptor research
    Volume: 36
    Issue: 2
    Date: 2002
    Page Range: 144--145
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  6. By: DeGraaf, Richard M. - Maier, Thomas J - Fuller, Todd K
    Type: Article
    In: The Wilson bulletin
    Volume: 111
    Issue: 2
    Date: 1999
    Page Range: 236--242
    Publication Info: Columbus, Ohio Wilson Ornithological Society 1894-
  7. By: Swift, Bryan L - Larson, Joseph S - DeGraaf, Richard M.
    Type: Article
    In: The Wilson bulletin
    Volume: 96
    Issue: 1
    Date: 1984
    Page Range: 48--59
    Publication Info: Columbus, Ohio Wilson Ornithological Society 1894-
  8. By: DeGraaf, Richard M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 1
    Date: 1989
    Page Range: 43--47
    Publication Info: Ottawa Ottawa Field-Naturalists' Club