we had been using a light to extend the day from just before sunset until 10:30 pm. Egg production went down to one or two eggs per day for 8 Americauna hens just less than a year old. We heard the light should come on early in the morning, so we switched our timer over to come on about 1 am, giving light until sunrise. The egg production in two weeks has picked up to 5 the last two days. That is quite a difference and we were pleased that they got back to laying so quickly after "shutting down" for the winter. They are very hardy birds as well. They had been molting during the few weeks they were down on their egg production As a benchmark, they had laid 7 eggs per day in late summer.