Arizona sits at the southern tip of the red squirrel’s range, and its 657 state records cluster tightly into the mountains that still grow the conifer forest this squirrel needs.
Two conifer islands, not one continuous range
Coconino County holds 329 of those records and Apache County another 212, the high country around the San Francisco Peaks and Flagstaff and the White Mountains further east. Both are conifer forest at elevation, the same spruce, pine, and fir stands the squirrel relies on everywhere else in its range. Records thin out fast below that forest line, and Arizona’s desert basins carry almost none. A close Arizona lookalike, Fremont’s squirrel, shares this same kind of Southern Rockies and Mogollon Rim conifer forest, so a brighter, more saturated rust back is often the surer field cue than location alone.
A single sky island holds a squirrel found nowhere else
Graham County’s 53 records mark the Pinaleño Mountains, an isolated conifer range rising straight out of the desert near Safford. That range is home to the Mount Graham red squirrel, a subspecies found nowhere else on Earth and pushed to the edge of extinction by repeated wildfire, drought, and competition from squirrels introduced to the same mountain. It’s the clearest example in Arizona of how a widespread, secure species can still carry a small, fragile group at the far edge of its range.
Status in Arizona
Arizona’s wildlife records list the red squirrel as native, with no evidence it’s been introduced anywhere in the state. Across its full range the species is considered secure, but its presence in Arizona really amounts to several small mountain-range refuges rather than one continuous range across the state, and the Pinaleño squirrels in particular remain under serious threat.
Full species profile
