Desert bighorn sheep establish two desert areas in southwestern Arizona to help preserve the desert bighorn sheep: Cabeza Prieta National Wildlife Refuge and the Kofa National Wildlife Refuge. In 1941, the San Andres National Wildlife Refuge in New Mexico was added. Desert bighorn sheep populations have trended upward since the 1960s when their population was estimated at 6,700-8,100. The upward trend was caused by conservation measures, including habitat preservation. In 1980, desert bighorn sheep populations were estimated at 8,415-9,040. A state-by-state survey was conducted a few years later and estimated the overall US desert bighorn sheep population at 15,980. The 1993 estimate of
The Desert Peach removed. Barr has said that she was inspired to create the character while working in the file office of the University of Washington, which was being painted a "horrible half-pink, half-tan color." Searching for a color name, she stumbled upon "desert peach", and was immediately inspired by the pun upon "The Desert Fox," the name given to Field Marshal Erwin Rommel during World War II . According to his biographers, Erwin Rommel had a youngest brother, named Manfred, who died in infancy—Barr said she only developed a personality who the universe had prematurely discarded. The Desert Peach commanded the 469th