I have 4 chickens which have been together for a year now. The largest chicken (blue) usually lays white coloured eggs. About three months ago she started only laying an egg a couple of times a week and then stopped completely about six to eight weeks ago. She comes out of the coop each day so doesn’t appear to be broody (our white one has gone broody a couple of times but we followed guidelines and she started laying again after about four days, each time). She eats layer pellets and drinks the water.