The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• BBL - Longevity Records of North American Birds (Online source)
• 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
• BirdLife International 2009. Buteo regalis
• Clark, W. 1987. A Field Guide to Hawks North America. Boston, New York: Houghton Mifflin Company.
• Ehrich, P., D. Dobkin, D. Wheye. 1988. The Birder's Handbook. New York, London, Toronto, Sydney, Tokyo, Singaporsingapor: Simon & Schuster inc..
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
• Leary W. Alan, , Mazaika RoseMary, Bechard J. Marc. 1998. Factors Affecting the Size of Ferruginous Hawks. The Wilson Bulletin: 198-205.
• Malick L. Donald, 1989. Field Guide to the Birds of North America. Washington, D.C.: National Geographic.
• REICHEL, J.D. and E.C. ATKINSON. 1995. Buteo regalis, Ferruginous Hawk. in NatureServe Explorer: An online encyclopedia of life [web application]. 2001. Version 1.6 . Arlington, Virginia, USA: NatureServe. http://www.natureserve.org/explorer
• Zeiner C.Zeiner, , Laudenslayer, F. William, Mayer E Kenneth, White Marshall. November, 1990. California's Wildlife Volume 2 Birds. Sacramento, California: Department of Fish and Game.
• del Hoyo, J., A. Elliott, J. Sargatal. 1994. Handbook of the Birds of the World V. 2 New World Vultures to Guineafowl. Barcelona: Lynx Edicions.