It shall be unlawful to maintain in any residential zone or planned retirement community any poultry, pigeons, farm animal, such as, but not limited to, horses, cows, pigs, ducks, and rabbits or other wildlife; or any building or accessory building, as defined, to house or shelter any poultry, pigeons, farm animals, such as, but not limited to, horses, cows, pigs, ducks and rabbits or other wildlife except as hereafter provided in Subsection S(2) below. The term poultry, farm animal or other wildlife shall not include domesticated household pets of four or less in number maintained on a residential lot and accessory to a residential use.