I have 34 hens of various large breeds that are all supposed to be cold weather hardy as I looked for that with where we live. They were all born between may and june and I was getting about 20 eggs a day before all of this lovely weather hit and a few days we only got 2 eggs and now it's been 7-15 lately. Is this normal? They are all free range from day break till sunset and no we don't have a light yet but my oldest son did dig a trench and run the wire out there before the ground froze so now I just have to get DH to go out there and put a light in. We have a clamp light on a tree that shines on the door and the front of the coop with a extension cord running from our garage but that was because we have a horrible racoon problem so I would sit out there at night when it was still warm with the shotgun and wait for them.