The Kerry Blue Terrier (also known as the Irish Blue Terrier) () is a breed of dog. Originally bred to control vermin including rats, rabbits, badgers, foxes, otters and hares, over time the Kerry became a general working dog used for a variety of jobs including herding cattle and sheep, and as a guard dog. Today the Kerry has spread around the world as a companion and working dog. Despite a Kerry Blue winning Crufts (the most prestigious UK dog show) in 2000, it remains an "unfashionable" breed, and is distinctly uncommon; however, it is not as threatened as some of the other terrier breeds such as the Skye Terrier, Sealyham Terrier, and Dandie Dinmont Terrier. Description Appearance Some characteristics of the Kerry Blue Terrier include a long head, flat skull, deep chest, and a soft wavy-to-curly coat that comes in several shades of "blue", the general term outside this breed being progressive grey. Puppies are born black; the blue appears gradually as the puppy grows older, usually up to 2 years of age. The male Kerry Blue is usually tall at the withers and weighs , while the female is usually and . Coat The coat is the key feature of the Kerry. It is soft and wavy with no undercoat. The texture feels like a combination of fine human hair and wool. It does not shed but continues to grow throughout the year. This means the Kerry Blue requires very regular grooming (at least once per week) and clipping an average of every 6 weeks. Temperament Kerry Blue Terriers are strong-headed and highly spirited. They have always been loyal and affectionate towards their owners and very gentle towards children but were often considered downright mean toward other animals, including other dogs. If they are socialised with other dogs this is no longer the case. In the early days of competitive dog showing, the Irish Kennel Club required Kerries had to pass a "gameness" test, known as Teastas Mor certification, before they were deemed worthy of being judged. These tests included catching rabbits and bringing a badger to bay in its set. They are fast, strong, and intelligent, and they do well in obedience, dog agility, sheep herding, and tracking. They have been used as police dogs in Ireland. Modern breeders have attempted to retain high spirits whilst breeding out aggression. As a long-legged breed, the activity level of