It's an illusion.
Roadrunner isn't in a sandy wash, but in a wind-eroded cave in a cliff over a seasonal creek.
A narrow and precarious path led to it.
It looked like perfectly respectable ringtail habitat.
The cave is under the lower overhang.
But no ringtail visited the place in 2 months.
What did visit were a wood rat, Merriam's chipmunk, California ground squirrel, a cottontail rabbit of all things, and the usual deer mice.
And there were brown towhees, scrub jays, and perhaps a mockingbird that perched on the camera.