Wirehaired Terrier is as much a coat description as a breed. It's a common alternate name for the Wire Fox Terrier, the English fox-bolting terrier known from Asta in The Thin Man and Snowy in Tintin, but listings also use it for wire-coated terrier mixes with Jack Russell, Border, Cairn or Schnauzer ancestry. What they share is a dense, crisp outer coat over a softer undercoat.
Most weigh roughly 13 to 25 pounds and are sturdy, quick and bold. Many are friendly and endlessly curious, with classic terrier habits like barking, digging and chasing small animals. In Mobile, that means a secure yard or a firm grip on the leash around squirrels, and a coat that needs regular stripping or clipping to stay neat. Because ancestry varies, a dog's size, energy and coat tell you more than the name on a listing.