The Boykin Spaniel is a medium-sized breed of dog, a Spaniel bred for hunting wild turkeys and ducks in the Wateree River Swamp of South Carolina, in the United States. It is the state dog of South Carolina, where it was discovered and further developed by hunters in the 1900s. 1 September is Boykin Spaniel Day in South Carolina. The dogs had to be small enough to ride in the small boats used by hunters in the swamps. The Chesapeake Bay Retriever, Springer Spaniel, Cocker Spaniel, American Water Spaniel, and various pointing breeds were used in the development of the breed, according to Whit Boykin's grandson Dr. Baynard Boykin. The area in which the breed developed, around Camden, South Carolina, was a resort and hunting area, and the breed was noticed by visitors and so spread around the United States.