Hounds can be contrasted with gun dogs that assist hunters by identifying prey and/or recovering shot quarry. The hound breeds were the first hunting dogs. They have either a powerful sense of smell, great speed, or both.[3] There are three types of hound, with several breeds type:
Sighthounds (also called gazehounds) follow prey predominantly by speed, keeping it in sight. These dogs are fast and assist hunters in catching game: fox, hare, deer, and elk.[4]
Scenthounds follow prey or others (like missing people) by tracking its scent. These dogs have endurance, but are not fast runners.[5]
The remaining breeds of hound follow their prey using both sight and scent. They are difficult to classify, as they are neither strictly sighthounds nor strictly scenthounds.