Our toy fox terrier had a litter of four early this morning. She encountered some difficulties during labor, so the pups were delivered via an emergency Cesarean section. Mom and puppies are doing well. Four puppies is a relatively large litter for this breed but make a nice warm pile while mom takes a break. . Toy fox terriers are quite small. The mother weighs about 6 lbs, and the puppies weigh about 4 oz. ea.