The Chesapeake Bay Retriever is a breed of dog belonging to the Retriever Gundog and Sporting breed groups. Members of the breed may also be referred to as a Chessie CBR or Chesapeake. The breed was developed in the United States Chesapeake Bay area during the 19th century. Historically used by area market hunters to retrieve waterfowl it is primarily a family pet and hunting companion. They are often known for their love of water and their ability to hunt.