The Irish Setter (Irish: sotar rua, literally "red setter") is a setter, a breed of gundog, and family dog. The term Irish Setter is commonly used to encompass the show-bred dog recognised by the American Kennel Club as well as the field-bred Red Setter recognised by the Field Dog Stud Book.

Irish Setters get along well with children and other dogs and will greet visitors enthusiastically. Even though they do well with household pets, small animals may pose a problem for this breed, as they are a hunting breed. Some Irish Setters may have problems with cats in the house, and may be too boisterous with small children.

Irish Setters enjoy having a job to do. Lack of activity will lead to a bored, destructive, or even hyperactive dog. This is not a breed that can be left alone in the backyard for long periods of time, nor should they be. Irish Setters thrive on constant human companionship. Irish Setters respond swiftly to positive training and are highly intelligent.

More Info: en.wikipedia.org