Bryan, J.E. and Shearman, P.L. (Eds). 2015. The State of the Forests of Papua New Guinea 2014: Measuring change over the period 2002-2014. University of Papua New Guinea, Port Moresby.
Davis, R.A, Dutson, G. and Szabo, J.K. in prep. Conservation status of the threatened and endemic birds of New Britain, Papua New Guinea. Bird Conservation International.
BirdLife International (2019) Species factsheet: Ninox odiosa. Downloaded from http://www.birdlife.org on 20/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/07/2019.