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  1. By: Block, William M. - Finch, Deborah M. - Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
    Publication info: Fort Collins, Colo, U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, [1997]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Ganey, Joseph L - Block, William M. - Dwyer, Jill K - Strohmeyer, Brenda E - Jenness, Jeffrey S
    Type: Article
    In: The Wilson bulletin
    Volume: 110
    Issue: 2
    Date: 1998
    Page Range: 206--217
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Covert-Bratland, Kristin A - Theimer, Tad C - Block, William M.
    Type: Article
    In: The Wilson journal of ornithology
    Volume: 119
    Issue: 1
    Date: 2007
    Page Range: 43--52
    Publication Info: Lawrence, KS Wilson Ornithological Society 2006-
  3. By: Ward, J. P. - Duncan, Russell B. - Seamans, M E - Olson, D R - Ganey, Joseph L - Block, William M. - Willey, David W. - Johnson, C - Reynolds, Richard T. - Derosier, S B - Rinkevich, S E - Tarango Arámbula, Luis Antonio
    Type: Article
    In: The journal of raptor research
    Volume: 29
    Issue: 1
    Date: 1995
    Page Range: 48--48
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  4. By: Ganey, Joseph L - Block, William M. - King, Robert Merrill
    Type: Article
    In: The journal of raptor research
    Volume: 34
    Issue: 4
    Date: 2000
    Page Range: 270--278
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  5. By: Morrison, Michael L. - Block, William M. - Jehl, Joseph R., Jr., - Hall, L. S. (Linnea Suzanne)
    Type: Article
    In: The Great Basin naturalist
    Volume: 52
    Issue: 4
    Date: 1992
    Page Range: 328--334
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,