The Parson Russell Terrier was formally known as theJack Russell Terrierin the USA. The breed was named after a clergyman named Rev. John Russell. It was used as a small-game hunting dog particularly for red fox, digging the quarry out of its den in the mid-1800s.
On English hunts, the dogs needed to be long-legged enough to keep up with the hounds. The breed used to have a strong emphasis on its working ability, so the standard was very broad, allowing a wide range of accepted body types. When show breeders wanted to make the look of the dogs stricter, they decided to change the name to separate the show types from the working types.
Effective April 1, 2003, the name Jack Russell Terrier was changed to Parson Russell Terrier as requested by the Jack Russell Terrier Association of America, which was changed to the Parson Russell Terrier Association of America. Some of the Parson Russell's talents include hunting, tracking, agility and performing tricks.