Shetland Sheepdogs, or Shelties (as they are known), look a bit like small Collies. Some people call them "miniature Collies", but they are a separate and distinct breed that originated on the Shetland Islands. A very Intelligent, loving and loyal breed, they are very much "people dogs" who want to be with their family, whether it is enjoying time on the couch watching TV or hiking up a trail. They do not do well being thrown out in the backyard and ignored. Shelties are a long haired breed with coat colors of sables, blacks,blues and merles with tan and/or white markings to different degrees. Although they were originally bred for herding sheep and guarding the flock, Shelties love to have a job, so they excel in agility, obedience ,rally and fly ball.
United States Dog Agility Association Helpful Links
Books on Agility : Enjoying Dog Agility From backyard to Competition ,Julie Daniels