My hen is due to hatch her first eggs 8/4/2011 She seems to be doing very well. I need to get prepared for the arrivals. I know that I will keep my rooster penned, however, will mom take over once hatched. I have a secure area for her and her chicks to stay, but need to know if I need to have a warmer area for them if mom goes off to feed etc. Do I need to separate them from mom?