Chickens will also stop laying as the days get shorter if you don’t use artificial light to extend the number of daylight hours for them. Here in Indiana, we’re down to about 11 hours of daylight a day. They’re doing okay so far, but we need to get a light on a timer put in the coop soon (so their number of light hours mimics that of the summer), probably before we get down to about 10 hours of light per day. Some people just let that happen, since it’s natural, and probably extends the laying life of the hens, but most people prefer to get eggs all year round and supplement with artificial light.

“It is normal for hens to stop or slow down laying in the winter months. The shorter days trigger this slow down, rather than the temperature.In order to keep hens laying all winter, artificial light can be used to equal 14 hours of light per day.”

Putting a light in the coop will help. I have one on a timer… comes on at 3am and goes off at 5pm This way they are getting 14 hours of light…. more like the summer months. Feed does make a HUGE difference! I learned that lesson the hard way… cheep corn is not what they need!
Heather

Mine stopped laying too. But, I have some new ones that just started laying so, I am getting a few again.