We live in Central Illinois and of course it has gotten cold and the days are shorter, but we have 30 hens and we are only getting one egg yes i said one egg for the last 3-4 weeks. They use to be free range but we have a coyote and hawk problem so we built them a pen 3 1/2 months ago so originally we thought it was from them just plain mad about the change in routine, then it got shorter days so we added light to make the day longer. And they are still free loaders not worthy of the feed that they are eating. Any thoughts or suggestions would be greatly appreciated from all.