Australian Cattle Dog

The Australian Cattle Dog, also known as ACD, Cattle Dog, Blue Heeler, Red Heeler, Queensland Heeler is a breed of herding dog first bred in Australia for herding cattle over long distances and across rough terrain. This breed is a medium-sized, short-coated dog that occurs in two main colour forms. It has either brown or black hair distributed fairly evenly through a white coat, which gives the appearance of a "red" or "blue" dog.