Hildebrandt, T.D. and R.D. Ohmart. 1982. Biological resource inventory (vegetation and wildlife) Pecos River basin, New Mexico and Texas. Unpubl. Report by Arizona State Univ. Center for Environmental Studies for the Bureau of Reclamation. 186 p.

• Buteo swainsoni
• Circus cyaneus
• Parabuteo unicinctus