Shetland sheepdog , also called the sheltie, is considered one of the most beautiful of all herding dogs. This small, rough-coated breed was developed to herd the small livestock of Scotland’s Shetland Islands. It stands from 13 to 16 inches (33 to 41 centimeters) high at the shoulder and somewhat resembles a miniature collie. The sheltie looks dainty and fragile, but it is a rugged dog capable of hard work. It has an intelligent, obedient personality, and it is gentler than some heavier types of herding breeds. Shelties make good pets and watchdogs.