gpeters3
Chirping
There has to be enough light and the right color light to stimulate their pineal gland (and hypothalamus) that releases the hormone that tells there body to start producing an egg... If the light is not sufficient it won't stimulate the gland...
That is probably why mine did not lay last winter. I Only had one bulb, way up high and not near the nest boxes. The year before in a smaller coop the light was right over the nest boxes and more watts and they laid all winter. A little slower than in summer but still pretty busy.