The Shetland Sheepdog, or "Sheltie" as it is commonly called is a rough-coated, longhaired working dog, he is alert, intensely loyal and highly trainable and is known as a devoted, docile dog with a keen sense of intelligence and understanding. Agile and sturdy, the Sheltie is one of the most successful obedience breeds, but also excels in agility, herding and conformation. Shelties love their families, but may be reserved at first with strangers. As a herding dog, they can be inclined to bark at and herd people. Shelties thrive on the farm, but adapt to many living situations if given proper exercise. The breed’s dense double coat requires regular maintenance. The coat can be black, blue merle or sable, marked with varying amounts of white and/or tan.