These terriers are one of the smallest terriers (11-12 lb, 5-5.4 kg; 9-10 inches (24-25.5 cm) at the withers), with prick ears and a double coat, which come in red, tan, wheaten, black and tan, and grizzle.
Temperament
Norwich Terriers can be red, wheaten, black and tan, or grizzle (red and black hairs intermixed).
These small but hardy dogs are courageous, remarkably intelligent and wonderfully affectionate. They can be assertive but it is not typical for them to be aggressive, quarrelsome or shy. They are energetic and thrive on an active life. They are eager to please but have definite minds of their own. They are sensitive to scolding but 100% Terrier. They should never be kept outside or in a kennel setting because they love the companionship of their owners too much. Norwich are not given to unnecessary barking but they will warn of a stranger approaching. Norwich are good with children. If introduced to other household pets as a puppy they generally co-habit peacefully, though caution should be observed around rodent pets as they may be mistaken for prey.
History
The breed has existed since at least the late 1800s, as working terrier of East Anglia, England. The game and hardy little dogs were useful as ratters in the stable yard, bolters of fox for the hunt, and loving family companions. It was the mascot of students at Cambridge University. Small red terriers, descendants of Irish Terriers, had existed in the area since at least the 1860s, and these might be the ancestors of the Norwich, or it might have come from the Trumpington Terrier, a breed that no longer exists. In its earliest history, it was also known as the Jones Terrier and the Cantab Terrier.
Since its earliest identification as a breed, puppies have had either drop or prick ears, and both were allowed when the Norwich was first recognized in the show ring in 1932 by The Kennel Club (England). Drop ears were often cropped until it became illegal to do so. This intensified a long-standing controversy over whether drop-eared dogs should be allowed in the show ring and whether the primary difference was simply the ears or whether other, deeper, personality and structural differences marked the drop-eared variety. Starting in the 1930s, breeders increased their efforts to distinguish the breeds.
Both ear types continued to be allowed in the ring until The Kennel Club recognized the drop-eared variety as a separate breed, the Norfolk Terrier, in 1964, and the American Kennel Club, United Kennel Club, and Canadian Kennel Club did the same in 1979.