The Australian Shepherd, often known simply as the 'Aussie', is a medium-sized breed of dog that was, despite its name, developed on ranches in the United States during the 19th century. However, the Border Collie was not used to create the Australian Shepherd. The Australian Shepherd most likely is the descendant of Carea Leonés, Pyrenean Shepherd and Old German herding dogs that were brought over by shepherds. The Australian Shepherd most likely is the descendant of Carea Leonés, Pyrenean Shepherd and Old German herding dogs that were brought over by shepherds. All black and blue merle dogs have black noses, eye rims, and lips. The Australian Shepherd has a reputation as a highly intelligent and versatile stock dog with a range of working styles. A good working Aussie is quick, thoughtful, and easy with its stock: there are working lines in the American West that still herd sheep, smaller cattle, and goats.
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