There are two types of Cocker Spaniels, the American and the English. The American originated in the United States in the 1800s but is a cousin of the English Cocker Spaniel that originated in the 14th century in England. It is said they came over on the Mayflower in 1620 but did not become registered by the American Kennel Club (AKC) until 1878. They were both bred to hunt and the only difference is their size. The American Cocker Spaniel is smaller, at about 13 to 15 inches and the English Cocker Spaniel is 15-17 inches. This breed is known for their ability to find and flush birds from the brush and retrieve them from the water in some cases. The Spaniels were all considered hunting dogs but were separated between land and water Spaniels, depending on their size and then the land Spaniels were separated depending on their ability. The Springer Spaniel was used to spring game animals from the bush and the Cocker Spaniel was used to flush the woodcock, which is a type of small bird. The American Cocker Spaniel started being bred differently to be in shows. They have longer torsos, a more domed head, and their prey drive was reduced. In 1946, the AKC decided the American Cocker Spaniel should be listed separately because of their differences. The Yorkshire Terrier originated in the 1800s in England as a hunter of mice and rats. They are believed to be a mix of the Dandie Dinmont Terrier, Skye Terrier, Paisley Terrier, Clydesdale Terrier, Waterside Terrier, and the Maltese. They were not that popular at first but is now the most popular Terrier in the United States where it was bred to be smaller and have a longer coat. In 1885, they were registered with the AKC and are the 9th most popular dog breed.