Track Hindprints are about 2 1/4" (55 mm) long, with 5 toes showing; foreprints rounder and smaller, about 1" (25 mm) long. Trail of hopping or running animal has hindprints in front of foreprints; in snow, such a trail often extends between trees.
Sign Large leaf nests, obvious in winter, often high in trees; summer nests are flat saucers of twigs and shredded bark. Often strips bark from branches of pines. Chews nuts open, leaving large, ragged holes in the shells. Other signs same as those of Eastern Gray Squirrel.