Bibliography and Citations

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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.  2009.  Dispersal of newly metamorphosed and juvenile western toads (Anaxyrus boreas) in northeastern Oregon, USA.  Herpetological Conservation and Biology.  4(2):236-247.  Available from http://www.herpconbio.org/Volume_4/Issue_2/Bull_2009.pdf
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.  1987.  Ecology of the pileated woodpecker in northeastern Oregon.  Journal of Wildlife Management.  51(2):472-481.
Bull E.L, Peterson S.R, Thomas J.W.  Submitted.  Resource partitioning among woodpeckers in northeastern Oregon.  
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, Wright AL, Henjum MG.  1989.  Nesting habitat of flammulated owls in Oregon. Manuscript submitted to journals..  
Bull E.L.  1987.  Capture techniques for owls. RM-142.  
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 E.L.  1989.  Pileated woodpecker: Dryocopus pileatus.  
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.  1980.  Resource partitioning among woodpeckers in northeastern Oregon.  :109pp.
Bull E.L, Hohmann J.E.  1994.  Breeding biology of northern goshawks in northeastern Oregon.  Studies in Avian Biology.  16:103-105.
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, 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, Holthausen R.S.  1993.  Habitat use and management of pileated woodpeckers in northeastern Oregon.  Journal of Wildlife Management.  57(2):335-345.
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 EL, Henjum MG, Rohweder RS.  1988.  Home range and dispersal of great gray owls in northeastern Oregon.  Journal of Raptor Research.  22(4):101-106.  Available from https://sora.unm.edu/node/53108
Bull E.L, Hohmann J.E.  1993.  Breeding biology of northern goshawks in northeastern Oregon. No. G4.  
Bull E.L.  1989.  Great gray owl: Strix nebulosa.  
Bull EL, Aubry KB, Wales BC.  2001.  Effects of disturbance on forest carnivores of conservation concern in eastern Oregon and Washington.  Northwest Science.  75(Special):180-184.  Available from https://research.wsulibs.wsu.edu/xmlui/handle/2376/995
Bull E.L, Henjum M.G.  1990.  Ecology of the great gray owl.  
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 E.L.  1983.  Longevity of snags and their use by woodpeckers. RM-99.  
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.