The Australian Cattle Dog is a hardy, loyal, and intelligent breed of herding dog. They are known for their strong work ethic and willingness to please their owners. They are an active breed and require regular exercise and mental stimulation. They are highly trainable and make great family
From Wikipedia
The Australian Cattle Dog, or simply Cattle Dog, is a breed of herding dog developed in Australia for droving cattle over long distances across rough terrain. This breed is a medium-sized, short-coated dog that occurs in two main colour forms. It has either red or black hair distributed fairly evenly through a white coat, which gives the appearance of a "red" or "blue" dog.