The setter is a type of gundog used most often for hunting game such as quail, pheasant, and grouse.
In the UK, the four setter breeds, together with the pointers, usually form a subgroup within the gundog group as they share a common function. However, the setter breeds each have subtle differences in head, bone and substance.[citation needed]
The American and Canadian Kennel Clubs classify these breeds within the Sporting Group.[1][2] Setters from show lines are usually considered to be heavier and larger than those from 'working' lines.[3][4][5]