The American Cocker Spaniel is a medium size breed of dog. It is one of the Spaniel type breeds, similar to the English Cocker Spaniel, and was originally bred as a gun dog. In the United States, the breed is usually referred to as the Cocker Spaniel, while in Canada and elsewhere in the world, it is called the American Cocker Spaniel. The word cocker is commonly held to stem from their use to hunt woodcock in England. Although the Cocker Spaniel type originated in the United Kingdom, by the 1940s the American breed was recognized as distinct from the English breed.
The English Cocker Spaniel is an active, good-natured, sporting dog, standing well up at the withers and compactly built. There are “field” or “working” cockers and “show” cockers. It is one of several varieties of spaniel and somewhat resembles its American cousin, although it is closer to the working-dog form of the field spaniel and the springer spaniel. Due to the breed’s happy disposition and continuously wagging tail, it has been given the cute nickname “merry cocker”. They can be also dominant and loyal to their companion.