As the name suggests, these are the hunting dogs. The so-called sighthounds (Greyhound, Afghan Hound, Borzoi, Irish Wolfhound, Saluki, Whippet, Deerhound) do their chasing by direct sight, whereas the scent-hounds (Beagles, Bloodhounds, Bassets) use their noses on the ground to follow their target. As a general characteristic, hounds tend to concentrate on the chase and do not to listen to the orders of their owner to come back to base. They don't tend to rank highly in advanced obedience tests. They also have loud voices and some hounds have the ability to produce a unique sound known as baying. It is best to sample this sound before deciding to get a hound of your own.