The Jack Russell terrier is a breed of dog, so named because it was originally bred by Parson John "Jack" Russell for the purposes of fox hunting. It is primarily white, with the occasional black or tan marks.
The Jack Russell is a broad species type, with a size range of 10–15 inches or 25–38 cm. It is an energetic and often considered "dizzy" breed of dog that relies on a high level of exercise, regular activities and stimulation and it is also relatively free from serious health complaints due to its lack of specially bred features.
Behind the scenes
- J. K. Rowling chose the Jack Russell terrier as a sentimental choice for Ron's patronus, because she had a Jack Russell terrier, whom she stated to be "insane."
- Harry Potter and the Order of the Phoenix (Mentioned only)
- Harry Potter and the Order of the Phoenix (film) (Appears as a Patronus)