Terriers and various small mongrels called mountain curs and feists are most often used, but any dog that will course through the woods in search of squirrels and bark enthusiastically when one is treed will do. Hunting squirrels with dogs is nowhere near as popular as it once was, but it still has a strong following in the mid-South. Regardless of the tactic used, the best times to hunt are in the early morning and late afternoon, especially for gray squirrels. Grays will sometimes sleep in on cold winter days, but as a rule they are most active at dawn and dusk. Good camouflage, particularly a hat that conceals one's face, is also a plus.
Squirrels can be very wary, and they usually have the benefit of an elevated position.
Fool a sharp-eyed squirrel just once, however, and you just might find yourself hunting like a kid again.