Urocyon cinereoargenteus
The only North American canid that climbs trees — semi-retractable claws and all.
1.25–1.75 in long. Four toes, claw marks often faint or missing. Smaller and rounder than a red fox print. Curved bar-shaped heel pad. Trail often ends at the base of a tree.
Brushy woodland, chaparral, rocky slopes, farm edges. Southern Canada to northern South America.
Nocturnal
Rodents, rabbits, insects, fruit
Gray foxes will nap on a tree branch 30 feet up.
Should I be concerned?
Harmless and shy. Watch from a distance.