I recently got some Khaki Campbell ducks, who are now about four months old. My drake has started to mate with the females now, and I am wondering if these ducks only mate during a certain season, or all of the time, like roosters will do. Khaki Campbells are big egg layers, and lay all year (correct me if I am wrong on this fact), so do they also mate all year, or only during the mating season for ducks?