A gun dog is a type of hunting dog that is trained to locate, flush out, and retrieve game. The three most common types of gun dogs are retrievers, pointers, and setters. Retrievers are known for their ability to quickly locate and retrieve game, while pointers are used to locate game by pointing at it with their nose. Setters are used to locate game by crouching or setting down in front of it. All three types of gun dogs are highly valued for their ability to help hunters find and capture game.