Producer of family companions and protectors We here at River City Presa strive to produce working athletic type. Presa Canario that are healthy, stable, with strong nerves. We breed to try to keep to the original Presa from the Islands and focus on health, temperament, nerve and drive and athletic for working. We raise dogs on a farm were they protect livestock from predators such as stray dogs and coyotes. We mostly breed to produce the ultimate family companion and protector.