The Sheltie developed in the Shetland Islands as a hardy working dog, an alert guard dog, and an intelligent, affectionate companion. The Sheltie generally resembles a Collie in miniature. His colour can be sable (ranging from light golden brown to a dark mahogany), tri-colour and blue merle, with varying amounts of white and/or tan. His most outstanding characteristic is his unique temperament. He has an intense desire to please and an enormous capacity for love and affection. The Sheltie is exceptionally trainable and responsive, characteristics which make him an ideal companion and an outstanding worker in obedience and agility.