Yes, a blue heeler is a cattle dog. The official name of this breed is the ‘Australian Cattle Dog’.
Blue heelers were bred in New South Wales in the nineteenth century, to help farmers control cattle. English drover’s dogs were crossed with dingoes and later, other breeds were introduced into the mix.
This created a smart, strong, and resilient breed that’s agile enough to avoid being trampled by cattle and courageous enough to herd bulls by biting their legs.