Australian Shepherd

Australian Shepherd, byname Aussie, also called Australian Shepherd dog, breed of herding dog that, despite its name, was developed in the western United States in the late 1800s primarily from British-derived herding dogs, most of which came to the American West via the East and Midwest, though some arrived via Australia. Other ancestors of the Australian Shepherd may have come to the American West with Basque immigrants from the Pyrenees mountains between France and Spain, where a smaller but similar-looking breed, the smooth-faced Pyrenean Shepherd, developed. A hardy dog with strong herding and guarding instincts, the Australian Shepherd stands 18 to 23 inches (46 to 58 cm) tall at the withers and weighs 40 to 65 pounds (18 to 29.5 kg). Notable is its highly variable coat, which, according to American Kennel Club standards, can be black, blue merle (marbled gray on black), red merle (red marbled with beige), or red, with or without white markings or tan (copper) points. There is often a white collar and white on the neck, chest, legs, muzzle, and underparts or a white blaze on the head. The coat is medium length, slightly wavy, with moderate feathering on the legs and a longer mane and frill on the throat and upper chest. The eyes are brown, blue, or amber, and in some dogs each eye is a different colour. The tail is often naturally bobbed.

In addition to herding and farm work, Australian Shepherds have been used for search and rescue, police work, therapy work, and aid to blind, deaf, or otherwise physically disabled people. They are valued family pets but require a high level of activity.