I've heard of some people putting their grain feeder away at night to prevent mice/rats. My question is, now that it's cold weather, will the chickens be ok without it during the night? Do they never wake up for a snack? Also, is it critical that it be put out as soon as the sun is rising? Is it alright to put back out an hour past sunrise etc? My chickens are locked in the coop at night. In the morning they are let into their hoop house run. They also free range when I'm outside. thanks!