Mama broody has hatched 2 babies today.There is 1 egg left.I live in Mi it has been 18deg at nite.Hte nest box is 5ft.up when should i move her and the babies down.And will she be ok in the coop if I put her in a special area with the chiks they are itty bitty bantams this is her first broody she is only 6.5m herself..I have a heat lamp in the coop now