Fox Terrier usually means the Smooth Fox Terrier or the Wire Fox Terrier, two close relatives that share a build and a personality but differ in coat. Both came from Britain, where they were developed to bolt foxes from their dens during mounted hunts, and their mostly white coats kept them from being mistaken for the quarry. The Toy Fox Terrier is a separate, smaller breed.
In Conway, that history shows up as a dog that digs, jumps and tracks anything small that moves, so a secure yard or a firm grip on the leash matters. Fox Terriers usually weigh 15 to 19 pounds and live 12 to 15 years. The Smooth is simple to brush, while the Wire sheds little but needs regular clipping or stripping, and terrier mixes may look like either.