We have one of our silkies has been on 4 eggs for 3 days now, she let me take them a few days prior but I figure if she is gonna try to hatch them I would let her try. This is her first time and ours, my question is the eggs had already been cold for at least a few hours, we try to keep our coop above freezing but its hard to do with temps in -20's. What is the possibility she will be able to hatch them? Also when they do hatch, should I bring the hen in with the chicks or just them? Or do we leave them out there?