In comparison, the Jack Russell Terrier Association of America wanted to be recognized by the American Kennel Club, which it was in 2000. So that the Jack Russell Terrier Club of America and Jack Russell Terrier Association of America were not confused, the American Kennel Club renamed the dog the Parson Russell Terrier. The red fox is the traditional quarry of the Jack Russell terrier, so the working Jack Russell must be small enough to pursue it. Red foxes vary in size, but across the world, they average from 6–8 kg (13–17 lb) in weight and have an average chest size of 30–36 cm (12–14 in) at the widest part. In the year 1930 English hunters would prefer the Parson Russell Terrier for their superb agility and presence of mind. Jack Russell’s name is used as a trademark by the famous Jack Russell terrier club of America. It is also considered that John Russell’s Terrier diverged into two breeds namely the Parson Russell Terrier and the Russell Parson Russell Terrier. Le Parson Russell Terrier est un petit chien de travail qui se caractérise par sa ténacité et sa rusticité. Vif, agile et bien proportionné, il est taillé pour la rapidité et les efforts de longue haleine. Le Parson Russell Terrier est plutôt haut sur pattes et sa poitrine est peu profonde. The third main difference between the three distinct breeds is size. The Russell Terrier stands between 8-12” tall, the Jack Russell Terrier stands between 10-12” tall, and the Parson Terrier stands between 12.5-15” tall. To make these distinctions even more complex, outside of the United States the Russell Terrier is called the Jack They differ slightly in size and coat, but all retain the quickness, fearlessness and drive to work found in Rev. Russell’s dogs. Parson Russell Terriers are taller than Jack Russells, useful for hunting in hilly areas, while Russell Terriers are the smallest and most adapted to working underground. All three excel in agility competitions. However, ever since Parson John Russell created his first dog, other people have had different opinions on what the Jack Russell dog should be like. There’s the classic Jack Russell Terrier breed, the Parson Jack Russell, the Shorty Jack Russell, the English Jack Russell, and many more. This list is only the tip of the iceberg in terms of BM. Bill M. Jan 2023. Lola, our Parson Russell Terrier, has been a blessing since losing our West Highland White Terrier of almost 16 years. She is extremely active, intelligent and a quick learner who craves attention. Our experience with Montana Jack's has been a pleasure. qIuvQF.