Shetland sheepdogs, known affectionately as Shelties, look at first glance like miniature rough collies. In fact, they are often mistakenly called Miniature collies; however, although they may share the same ancestors, the Shetland sheepdog is a distinct breed developed under unique circumstances.
Shelties hail from the Shetland Islands of Scotland, also known for Shetland ponies and other small breeds of animals. The area's harsh conditions, with sparse vegetation, favored smaller breeds of livestock and thus, smaller dogs to herd them.
Shelties are probably the result of crossing the larger rough collie of the time with other island dogs including small herding breeds and spaniels. Some historians believe that the Sheltie was developed by 1700. The breed was refined after it was imported to mainland Scotland in the 20th century. Shelties were first recognized in England in 1909 and first registered in the United States in 1911.
The Shetland sheepdog was bred to herd sheep and was considered a kind, smart, hardworking animal. The Shelties we know today are somewhat larger than their original ancestors, but they retain a reputation for intelligence, willingness to work, and good humor. The same qualities that made them exemplary helpers and herders combine to make them popular family pets.