The warren was organized and deeply controlled by the use of Marks. A rabbit would be scarred on different parts of the body that told where they stayed in the warren, with whom they could associate, and when they could silflay.(E.g. A rabbit with a scar on its left back leg would stay in the Near Hind Mark, etc.) The Marks were created to keep the number of rabbits above ground smaller to avoid being noticed. Only a certain Mark was allowed above ground to silflay at a given time and the schedule rotated, so that every rabbit got a share of the favored feeding times.
With the Council forcing the warren to keep from expanding, General Woundwort organized Wide Patrols, which are unique to Efrafa and used as an outlet for his desire for power. First led only by Woundwort, he led a group of rabbits to go out and find trouble. They were soon led by trusted officers of the Owsla and sent out to find rabbits to capture and force to join or warrens to conquer. As dangerous as the patrols were, they served the purpose of keeping the numbers down due to high casualties.
Another unique idea of Woundwort's was the Owslafa, a sort of police squad organized by Woundwort as a means of more control.
After the Watership Down rabbits hatched and executed a plan to steal does from Efrafa which ultimately ended in the defeat of General Woundwort, Efrafa and the Watership Down Warren became a close alliance. Captain Campion became the new Efrafan Chief Rabbit, while Groundsel, an ex-Efrafan officer, left to become the Chief Rabbit of a new warren called Vleflain.