Cloaca: In the cloaca there is a mixing of the digestive wastes
together with wastes from the uri- nary system (urates). Fecal material is usually voided as digestive waste with white uric acid crystals on
the outer surface. The reproduc- tive tract also exits through this area but when a hen lays an egg the vagina folds over to allow the egg to leave through the vent without coming into contact with the feces or urine.