I have 7 Barred Rocks and only one is laying, like clockwork, one egg a day. About three weeks ago, I found 7 eggs in their boxes. Since then, it's been back to the one-egg-a-day routine. I put a light in their coop and have been leaving it on all night. Will this bother the hens? Any ideas on the weird egg laying schedule? I got these hens early this past May.