The Old English Sheepdog (OES) is a large breed of dog that emerged in England from early types of herding dog. Obsolete names for the breed include Shepherd's Dog and bob-tailed sheep-dog. The nickname Bob-tail (or Bobtail) originates from how dogs of the breed traditionally had their tails docked. Old English Sheepdogs can grow very long coats with fur covering the face and eyes and do not shed unless brushed. The Old English Sheepdog comes from the pastoral type dogs of England. A small drop-eared dog seen in a 1771 painting by Gainsborough is believed by some to represent the early type of the Old English Sheepdog. Old English Sheepdogs that exhibit basic herding instincts can be trained to compete in herding trials.