Arizona Gray Squirrel
A broad pale-edged tail and warm reddish back distinguish this large squirrel of Arizona’s oak-lined mountain canyons.

Artwork inspired by Effie Anderson Smith
Arizona Gray Squirrels are larger and warmer-backed than common urban gray squirrels, with a broad pale-fringed tail. They travel through oak and walnut woodland and may forage quietly on the ground.
Look along canyon roads and riparian trails at dawn, watching canopy crossings and listening for cut nuts or bark fragments. Distinguish them from introduced fox squirrels around cities. Observe without food or pursuit. Road mortality and habitat loss are more relevant than obtaining a close photograph.
- Primary state
- Arizona
- Status
- Regional southwestern species centered in Arizona mountain systems
- Range
- United States and Mexico
Quick guide
- First clue
- Large gray squirrel with reddish-brown back and pale-edged tail
- Confirm with
- tracks and feeding sign; context: Oak, pine-oak, walnut, and riparian woodland in Arizona and adjacent Mexico
Read Arizona Gray Squirrel in four field decisions
- Start with one clue
- Use “Large gray squirrel with reddish-brown back and pale-edged tail” as a hypothesis, not a conclusion.
- Check a second feature
- Next, seek “tracks and feeding sign”.
- Record habitat and season
- Treat “Oak, pine-oak, walnut, and riparian woodland in Arizona and adjacent Mexico” as supporting evidence, not proof by itself.
- Finish without disturbance
- Observe Arizona Gray Squirrel from a position that leaves its movement and surrounding habitat unchanged.
Good to know
Leave Arizona Gray Squirrel unidentified when “Large gray squirrel with reddish-brown back and pale-edged tail” and “tracks and feeding sign” cannot both be documented; an explicit uncertainty is more useful than a forced match.
Notice these
- Large gray squirrel with reddish-brown back and pale-edged tail