It's awfully chilly out here, and we're on a hill so we get hit worse with the cold wind, I want to go as long as I can without putting a heat lamp in there on especially cold days. I'm thinking on feeding some cracked corn with their regular feed, just something to give them a boost, how much should I feed? I use one of the big hanging feeders, and I usually fill it half way up, should I go half and half? so one quarter cracked corn, one quarter feed? (fyi, they're eating grower right now as they haven't started laying yet).