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 early through mid 1900s. September 1 is Boykin Spaniel Day in South Carolina, originally established in 1984.[1]