Medium coat, red merle Koolie is an Australian dog breed. The Koolie is a working or herding dog which has existed in Australia since the early century when it was bred from imported British working dogs.
Australian cattle dogs - the Blue Heeler beautiful, loyal, extremely active . needs a job to do ! It has been nicknamed a "Red Heeler" or "Blue Heeler" on the basis of its coloring and practice of moving reluctant cattle by nipping at their heels.