The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- A. S. Umanskaya. 1979. Novii Vid Pugacha (Bubo Longaevus) z Piznioneogenovikh Vikladiv Pivnichnogo Prichornomoria URSR.
- Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
- Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
- Banks, Richard C., C. Cicero, J. L. Dunn, A. W. Kratter, P. C. Rasmussen, J. V. Remsen, Jr., et al. 2003. Forty-fourth supplement to the American Ornithologists' Union Check-list of North American Birds. The Auk, vol. 120, no. 3. 923-931
- Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org