The Bearded Collie is a medium-sized, strong working dog. The body is long and lean. The head is large, broad and flat with a moderate stop. The muzzle is relatively short, strong and full. The black nose is large and square. The medium-sized ears hang close to the head and are covered with long hair. The teeth are large and meet in a scissors bite. The eyes are wide set and are in tone with the coat color. The tail is carried low unless the dog is excited. They have a shaggy, waterproof, double-coat, which hangs over the entire body including the chin (hence the name "Beardie"). Beardie pups are born black, blue, brown or fawn, with or without white markings and often lighten, first fading to a light gray or cream as the dog matures. The coat color changes several times before it reaches the adult color. The final coat color is somewhere between the puppy coat and the color the coat is when the dog is about a year old.