This rugged bearded livestock herder and guardian from the Terceira Island is fairly unknown outside Portugal, but is believed to be a very old working breed, descended from a variety of European hunting and herding dogs, such as imported early bulldogs and hounds, as well as Briards and Polish Lowland Sheepdogs. Traditionally used for guarding and controlling rowdy cattle, the Barbado da Terceira also makes a dedicated watchdog and an agreable family pet. Some specimens can be overly suspicious of strangers, but the breed is generally even-tempered and easy to train. The ears are usually cropped for work and the tail is oftentimes docked, but most companion dogs are left in their natural state.

The coat is rich, rough and moderately wavy, common in shades of white, cream, fawn, brown, gray or black, with or without brindling and white markings. Average height is around 20 inches.