This article is about the dog breed; for the aquatic creature from Celtic mythology see kelpie. The Kelpie is an Australian sheep dog successful at mustering and droving with little or no command guidance. They are medium-sized dogs and come in a variety of colours. Kelpies have been exported throughout the world and are used to muster livestock primarily sheep cattle and goats The breed has been separated into two distinct varieties: the show or bench Kelpie and the working Kelpie.