A collie or a collie dog is a dog with long hair and a long, narrow nose. Breed of working dog developed in Great Britain, probably by the 18th century. The rough-coated variety was originally used to guard and herd sheep; the smooth-coated variety was used to drive livestock to market. Both varieties are lithe dogs with a tapering head, almond-shaped eyes, and erect ears that tip forward at the ends. They stand 22-26 in. (56-66 cm) tall, weigh 50-75 lb (23-34 kg), and may be variously coloured. See also border collie
developed in the area between Scotland and England usually having a black coat with white on the head and tip of tail used for herding both sheep and cattle
Breed of long-haired sheepdog that has been used along the English-Scottish border for about 300 years. Usually black and white, it stands about 20 in. (50 cm) and weighs 30-50 lbs (14-23 kg). It is the most popular working sheepdog in the British Isles