The Shetland Sheepdog, often known as the Sheltie, is a breed of herding dog that originated in the Shetland Islands of Scotland. They are a small, double coated, working dog, agile and sturdy. Blue merle Shelties may have blue eyes or one brown and one blue eye, but all others have dark-colored eyes. White factoring affects the amount of white on the dog. It is hard to tell, without actually breeding, whether a dog is white-factored or not, though dogs with white going up the stifle (the front of the hind leg) are usually assumed to be white-factored. Breeding two white-factored dogs can result in color-headed whites — Shelties with colored heads (sable, tricolor, bi-black, or blue or sable merle) and white bodies. Male shelties technically shed less than females but fur still comes off constantly.
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