I have 7 hens and 3 roosters. I got them in May as chicks. They began laying eggs in late summer early fall though I was only getting 3 or 4 a day since going into winter they have stopped laying all together. They are in a coop in the barn with an outside pen as well. My husband gave them a light on a sensor so at dark it comes on and goes off in the morning. Could it be too much light? Do they need darkness?