The Ridgefield Board of Selectmen will consider an ordinance tonight about the proper care of horses.  A public hearing on the proposal is set for tonight.  It calls for a minimum land requirement of 1.5 acres for one horse, and a half an acre more for each additional horse.  Enclosures, fencing and distance from neighboring properties are also outlined in the draft ordinance.  The Ridgefield Press reports that the ordinance stemmed from neighbor complaints on Lewis Drive and Manor Road about three horses in a residential area on Manor Road.