I have 22 laying hens. Only 3 are old enough to molt. The rest are only 10 months old. A month ago, I was averaging 16-18 eggs per day. For the last 4 weeks, I have only averaged 4 per day. The temperatures have only been near freezing twice, so I don't think it is the cold weather (Southern Alabama). It was 72 degrees here on Thanksgiving Day! Could it be the shorter days? Right now, it gets daylight at 6:30 AM and is dark at 5:30 pm. This is 11 hours of daylight. Could this be the problem? What types of lights/bulbs do you use to increase the daylight? My coop where they roost is 12ft x 12ft and 10 feet tall.