Hall, R. S., R.L. Glinski, D.H. Ellis, J.M. Ramakka, and D.L. Base. 1988. Ferruginous hawk. Pages 111-118 in Glinski et al., eds. Proc. Southwest Raptor Manage. Symp. and Workshop. Nat. Wildl. Fed. Sci. and Tech. Ser. No. 11.

• Buteo regalis