If one looks at the range map for Rufous-winged Sparrow, one finds that this New World sparrow has 95% of its range in Northern Mexico and the remaining 5% extends into a a tiny sliver into Southern Arizona. Indeed, it is not found anywhere else other than a few counties in that state (Pima, Cochise, and Santa Cruz).
Major Charles Bendire, a noted naturalist-soldier in the US Army. Charles Bendire, born in Germany (as Karl Emil Bender), sailed to the US at 17 years of age and enlisted in the US Army a year later (as Charles Bendire). Decorated for gallantry in the Civil War, Bendire spent most of his time in Arizona, California, Idaho, New Mexico and Washington helping expand and consolidate US control while also extirpating native Americans; a job which, over the course of the 32 years of his service in the Cavalry, exposed him to the wonders of nature and where he developed an intense and addictive love for birds.
Bendire discovered the rufous-winged sparrow in 1872 near Tucson; in a couple of decades, the sparrow was eliminated from the region due to overgrazing. It began to recover starting in 1936 and its current population trends are stable.
Other birds observed in the area included: