You would think that a chicken would naturally molt when the daylight is first starting to change, to get ready for winter. It seems my ISA Browns decided to wait until the first real cold weather hit. We had frost the last few nights, although not a heavy frost, it's gotten much colder. Temps are reaching 32 at night but warming to 50-60 during the day. I have seen egg production dropping the last week, and a few smaller eggs recently. Yesterday I see the feathers laying around, so I figure ok they are going into molt. Now I have seen some pictures of molting birds that are practically bald, and I hope mine don't get to this point, or they might all freeze before the new feathers grow in. Nature seems cruel to let them molt when it is cold. How well can a hen handle this cold when their feathers are missing? Do they have enough fat to keep them warm? Do I need to put the heat lamp on at night? How long does the average molt take, before they are fully feathered again, and the egg production starts again?