Cooperative Fish and Wildlife Research Units Program: Oregon
Education, Research and Technical Assistance for Managing Our Natural Resources


Wiens, J.D., K.M. Dugger, D.B. Lesmeister, K.E. Dilione, and D.C. Simon. 2019. Effects of Barred Owl (Strix varia) removal on population demography of Northern Spotted Owls in Washington and Oregon, 2015-18. U.S. Geological Survey Open File Report 2019-1074, 17pp. hppts://doi.org./10.3133/ofr20191074.

Abstract