The Jack Russell Terrier traces back to Reverend John Russell, a hunting parson in nineteenth-century Devon, England, who wanted white terriers that could keep up with hounds and bolt foxes from their dens. Jacks are compact, mostly white dogs with black or tan markings and smooth, broken or rough coats. The taller show type is registered as the Parson Russell Terrier.
In Jersey City, that working heritage shows up on sidewalks and in stairwells. Many Jacks are bold, clever and vocal, with a strong urge to chase squirrels, pigeons and anything else that darts. They dig, climb and squeeze through gaps, so a secure harness and leash matter. Dogs vary, but a Jack does best with someone who enjoys training and daily activity.