The Cocker Spaniel in the United States is a different dog than the Cocker in England, and was developed from the early U.S. importations of the English Cocker Spaniels.
Cockers are the smallest of the land spaniels.
The breed is a flusher when working game. Unfortunately, very few are used for hunting any more. Today it enjoys the position of being the world's most popular spaniel. The Cocker Spaniel was recognized by the United Kennel Club as a breed separate from the English Cocker Spaniel in 1947. The smallest of the hunting land spaniels, the Cocker is compact and square bodied, with a cropped tail, long ears and long hair.