Otus trichopsis

New Mexico Department of Game and Fish. September, 2000. Threatened and endangered species of New Mexico, biennial review and recommendations. Revised Draft. 139 p.

American Ornithologists' Union (AOU). Banks, R.C., C. Cicero, J. L. Dunn, A. W. Kratter, P. C. Rasmussen, J. V. Remsen, Jr., J. A. Rising, and D. F. Stotz. 2003. Forty-fourth supplement to the American Ornithologists' Union Check-list of North American Bi