The Golden Eagle (Aquila chrysaetos) is among the most studied of raptors (Watson 1997, Kochert et al. 2002). The easiest way to monitor its diet during the breeding season has been to sample remains in active nests (Collopy 1983). In western North America, Golden Eagle nests contain remains primarily of leporids (rabbits and hares) and sciurids (ground squirrels) but also of many other species (Olendorf 1976, Palmer 1988, Kochert et al. 2002). Published information for the southwestern U. S. is limited to prey collected from 41 nests in southeastern New Mexico and western Texas in the 1960s (Mollhagen et al. 1972), nine nests in central Arizona in 1985 (Eake and Grubb 1986), and time-lapse photography and prey collected at four nests over two years in the trans-Pecos region of Texas (Lockhart 1976). Mammals, mostly hares, rabbits, and sciurids, dominate these samples.