ok, tomorrow night its supposed to get down to 0 degrees. this is my chickens first winter and they haven't had it this cold yet. (actually nether have i that i can remember!)how can i keep them warm! i have a heat lamp and a small coop but still i need to know anything else about keeping them warm! i will also use patroleum (?) jelly on their combs,wattles, and legs. i would bring them inside in a heart beat but i can't. i know they may be fine but i love them and want to make sure they will be ok. please tell me anything you can.and i would get another heat lamp too,but i can't go out tomorrow anything will help thank you!