Red and red wheaten are colors that are allowed in Border Terriers. The red wheaten, which is not a common color in today's BTs, will not have much black in the ears or muzzle. Grizzles can range anywhere form slightly grizzled (black hairs in the coat) to heavily grizzled resmbling a blue and tan. The way to tell if a dark dog is a blue or a grizzle is to look at the undercoat. Light colored, it's a grizzle. Black/blue... it's a blue.
Answered by ketkaknl - 12/13/2010 2:32:14 PM