The Smooth Collie is the short-coated form of the Collie, a Scottish herding dog that became fashionable after Queen Victoria took an interest in collies around 1860. In the United States it's one variety of a single breed, judged by the same standard as the Rough Collie, while Britain and Australia treat it as a separate breed. Under the sleek coat are a long wedge-shaped head, tipped ears and colors of sable, tricolor, blue merle or white.
Smooths are usually gentle, devoted and bright, and they learn quickly with reward-based training. Many are alert barkers and may try to herd children or other pets. The coat is easier than a Rough's, but it's still a double coat that sheds heavily in seasonal blows, so a weekly brush helps. Smooths are uncommon, and each dog's personality will differ.