It seems to me that the "ordinary chicken" is a Red Junglefowl which lives in an environment with about 12 hours of sunlight, every day of the year.
During the annual breeding season, the junglefowl hen lays 1 or 2 clutches of 5 to 12 eggs.
Steve
During the annual breeding season, the junglefowl hen lays 1 or 2 clutches of 5 to 12 eggs.
Steve