The Jack Russell Terrier takes its name from the Reverend John Russell, a nineteenth-century Devon parson who wanted white terriers that could keep up with hounds and bolt foxes from their dens. Today's dogs are compact and mostly white with black or tan markings, about 10 to 15 inches tall, in smooth, broken or rough coats. The taller show type is registered in the US as the Parson Russell Terrier.
Many Jacks are bold, clever and funny, with a strong prey drive and a talent for digging and escaping. In Springfield, where greenways and creekside trails offer squirrels, rabbits and ticks, that drive has plenty of triggers. They suit active adopters who enjoy training and are rarely couch dogs. Each dog differs, but many land in shelters because their energy was underestimated.