English cocker spaniel is a popular sporting dog. Outside the United States, it is known as the cocker spaniel. The English cocker is alert, well balanced, and strongly built. It is noted for its endurance and intelligence and is a responsible and willing dog, both in the field and as a companion. It differs from other cockers chiefly in size, weighing from 26 to 34 pounds (12 to 15 kilograms) and standing 16 inches (41 centimeters) tall at the shoulder. See also Cocker spaniel; Spaniel.