Bibliography and Citations

Found 11964 results
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Bull E.L, Henjum M.G, Rohweder R.S.  1989.  Reproduction and mortality of great gray owls in Oregon (Proof of forthcoming article).  Northwest Science.  63(1):38-43.
Bull EL, Wright AL, Henjum MG.  1989.  Nesting habitat of flammulated owls in Oregon. Manuscript submitted to journals..  
Bull EL, Duncan JR.  1993.  Great gray owl (Strix nebulosa).  Birds of North America Online.    Available from http://bna.birds.cornell.edu/bna/species/041
Bull EL, Meslow E.C.  1977.  Habitat requirements of the pileated woodpecker in northeastern Oregon.  Journal of Forestry.  75(6):335-337.  Available from http://www.ingentaconnect.com/content/saf/jof/1977/00000075/00000006/art00012
Bull E.L, Peterson S.R, Thomas J.W.  Submitted.  Resource partitioning among woodpeckers in northeastern Oregon.  
Bull E.LJGHe, Henjum J.G, Rohweder R.S.  1989.  Diet and optimal foraging of great gray owls.  Journal of Wildlife Management.  53(1):47-50.
Bull EL, Pedersen RJ.  1978.  Two methods of trapping adult pileated woodpeckers at their nest cavities.  North American Bird Bander.  3(3):95-99.  Available from https://sora.unm.edu/node/92403
Bull EL, Wales BC.  2001.  Effects of disturbance on birds of conservation concern in eastern Oregon and Washington.  Northwest Science.  75(Special):166-173.  Available from https://research.wsulibs.wsu.edu:8443/xmlui/handle/2376/993
Bull EL, Henjum MG, Rohweder RS.  1988.  Nesting and foraging habitat of great gray owls.  Journal of Raptor Research.  22(4):107-115.  Available from https://sora.unm.edu/node/53109
Bull E.L.  1983.  Longevity of snags and their use by woodpeckers. RM-99.  
Bull E.L.  1989.  Great gray owl: Strix nebulosa.  
Bull E.L, Henjum M.G.  1990.  Ecology of the great gray owl.  
Bull E.L.  1980.  Resource partitioning among woodpeckers in northeastern Oregon.  :109pp.
Bull E.L.  1989.  Pileated woodpecker: Dryocopus pileatus.  
Bull EL, Carter BE.  1996.  Tailed frogs: distribution, ecology, and association with timber harvest in northeastern Oregon.    Available from http://www.fs.fed.us/pnw/pubs/pnw_rp497.pdf, http://www.biodiversitylibrary.org/item/165461#page/3/mode/1up
Bull E.L, Holthausen R.S, Marx D.B.  1990.  How to determine snag density.  Western Journal of Applied Forestry.  5(2):56-58.
Bull E.L, Wales B.C.  2001.  Effects of disturbance on amphibians of conservation concern in eastern Oregon and Washington.  Northwest Science.  75(Special Issue):174-179.
Bull EL, Hohmann JE, Henjum MG.  1987.  Northern pygmy-owl nests in northeastern Oregon.  Journal of Raptor Research.  21(2):77-78.
Bull E.L, Holthausen R.S.  1993.  Habitat use and management of pileated woodpeckers in northeastern Oregon.  Journal of Wildlife Management.  57(2):335-345.
Bull EL, Hayes MP.  2001.  Post-breeding season movements of Columbia spotted frogs (Rana luteiventris) in northeastern Oregon.  Western North American Naturalist.  61(1):119-123.  Available from https://ojs.lib.byu.edu/spc/index.php/wnan/article/view/28111
Bull EL.  1987.  Ecology of the pileated woodpecker in northeastern Oregon.  Journal of Wildlife Management.  51(2):472-481.
Bull E.L.  1987.  Capture techniques for owls. RM-142.  
Bull E.L, Hohmann J.E.  1994.  Breeding biology of northern goshawks in northeastern Oregon.  Studies in Avian Biology.  16:103-105.
Bull E.L, Holthausen R.S, Henjum M.G.  1990.  Techniques for monitoring pileated woodpeckers.  
Bunderson E.D, Weber D.J, Nelson D.L.  1986.  Diseases associated with Juniperus osteosperma and a model for predicting their occurrence with environmental site factors.  Great Basin Naturalist.  46:427-440.