Red fox or coyote?

Build [1][2]

Usually low, slim, and relatively short-legged

Usually taller, lean, and long-legged

Tail [1][2]

Very full; often has a clear white tip

Less luxuriant; often dark-tipped and carried low

Face [1][2]

Fine muzzle with dark-backed ears

Longer muzzle with proportionally tall ears

Legs & feet [3][4]

Black legs and feet, like dark stockings against the red coat

Front legs whitish; outer hind legs reddish, inner sides whitish

Coat above [3][4]

Reddish yellow, slightly darker on the back; rare color phases keep a white tail tip

Light gray or dull yellow, with the outer hairs tipped black

Weight [4][5]

Small; published weights run about 7 to 15 pounds

Heavier, though agency figures vary by region, roughly 18 to 40 pounds

Front track [6]

Roughly 1.5 inches wide by 1.8 long