Buteo regalis
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Museum of Vertebrate Zoology. 1999. Specimen information from the University of California at Berkeley (MVZ) for birds. 5 p.
Air Combat Command. 2003. Environmental assessment for the use of white phosphorus rockets at Melrose Air Force Range, New Mexico. . 141 p.
Taylor, D. 2000. E-mails concerning birds sighted at Davies Tank on White Sands Missile Range, New Mexico.
Schwarz, H. R. 2000. Y-2000 ferruginous hawk summary for New Mexico. 1 p.
Hawks Aloft, Inc. 2000. Nesting, productivity, and food habits of ferruginous hawks as a function of prairie dog towns in Central, Western, and Northwestern New Mexico. Unpublished report submitted to Bureau of Land Management, Socorro and Farmington Di
Schwarz, H. 1997. Cibola National Forest breeding bird survey report for 1997.
Cortez III Service Corporation, WSMR. 1994. Results of biological surveys for listed taxa at the Launch Complex, Instrumentation Area, and Control Areas associated with the HERA Project. 24 March 1994.
Gould-Falzone, Kim. 1988. Ground observation monthly report - casual observations, May 1988. White Sands Missile Range. 2 pp.
Sweanor, Linda and Kenny Logan. 1986. Preliminary bird list for the San Andres Mountains, New Mexico. Hornocker Wildlife Research Institute. 5 pp.