Because they walk on the tips of their feet, they tend to leave three-toed tracks that resemble bird footprints, with prominent marks made by each hindfoot. Foreprint about 1 3/4" (45 mm) long, 1 5/8" (40 mm) wide; hindprint more than 2" (50 mm) long, 1 5/8" (40 mm) wide. In sand or dust, tracks are blurred and appear almost hoof-like. In soft earth or mud, occasionally all toes show more or less clearly. Forefoot has 4 toes: long middle ones closely spaced, much shorter outer 2 spread wide. Hindfoot has 5 toes more evenly spread: middle 3 long, outer 2 short, with no separation from heelpad. Trail sometimes shows only occasional footprints, as some are obliterated by the drag marks of the armor shell.
Burrows, with entrance holes about 6–8" (150–200 mm) across, often along creek banks or hillsides. When foraging, often leaves patches of torn-up soil or leaf litter like those left by a skunk. A dug-up anthill is a good sign that an armadillo is present.
Scat: Looks like clay marbles and consists chiefly of clay, for an armadillo consumes much soil as it feeds on insects.