Size and Build
The Kerry Blue Terrier is a medium-sized, muscular terrier with males typically standing between 56 and 61 cm tall at the withers and weighing 29 to 34 kg. Females are slightly smaller, standing 51 to 56 cm and weighing 25 to 29 kg. Their body proportions are balanced and compact with a deep brisket, well-sprung ribs, and a level topline. The neck is strong and slopes gracefully into flat shoulders. Their legs are straight and sturdy, showcasing substantial bone structure, with small rounded feet and black nails. Hindquarters are powerful and well-muscled, supporting agile, free-moving gait.
Coat and Colours
Their signature coat is soft, dense, and wavy, resembling the texture of astrakhan fur rather than typical terrier hair. Puppies are born with black coats that gradually transition through black turning blue to the uniform slate-blue colour by approximately 18 months of age. Accepted colours recognized by The Kennel Club include black, black and blue, black turning blue, and solid blue. A small white patch on the chest is permitted in conformation showing and is not penalised.
Distinctive Features
Kerry Blues have a distinctive long, flat-topped head with a slight stop, a strong foreface with powerful jaws, and a black nose. Their eyes are dark, medium-sized with a sharp, alert terrier expression. Ears are V-shaped, moderately small, and carried forward. The tail is moderately long, set high, thick at the base tapering to the tip, and typically held straight but carried gaily when excited. Their gait is energetic, free, straight, and parallel in both front and hind limbs without twisting of the stifles.
Gender Differences
Males tend to be slightly taller and heavier with a more robust physique and more dominant temperament. Females are typically lighter and display a somewhat more reserved nature but share the breed’s characteristic alertness and energy. Both require consistent grooming and active management.
Breed Standard and Show Ring Preferences
The breed standard emphasises a balanced, athletic build without exaggerations that could impair health or working ability. Judges look for the typical slate blue colouring, strong scissor bite, and confident, lively movement. Docking of tails was traditional but is now illegal except for approved working dogs or medical reasons, so natural tails are the norm in modern shows.