The Parson Russell Terrier takes its name from the Reverend John Russell, a Devon hunting parson who wanted a mostly white terrier with legs long enough to keep up with foxhounds. Today's Parson is the longer-legged, square-built cousin of the Jack Russell, about 13 to 15 inches tall and 13 to 17 pounds, with a smooth or broken coat that's mostly white with black or tan markings.
At home, many Parsons are playful, bold and very affectionate, but they also have a working terrier's tenacity. They dig, chase and bark when bored, and some are scrappy with other dogs. In San Diego's canyon-lined neighborhoods, that means secure fencing, a good leash and daily mental work. Patient adopters who enjoy training tend to do best.