Can you tell in their behavior when the eggs are about to hatch? My hen seems a little restless in her box right now and I'm not sure if the eggs are about to hatch or what, or if she's cold. She is at day 21 right now, so I expect chicks today or tomorrow. Also, what is the probability of her actually hatching out the eggs? Shes been laying on them non stop, barely coming out to eat, just like she should be doing. But its been cold here, especially for SC. It snowed Saturday and Sunday was very cold, last night was colder and today isn't looking great for warming up. She has a ton of hay and a really deep nest of hay, pine shavings and feathers. I also put a heat lamp in there for her yesterday because I think the cold and lack of the proper amount of food is taking a toll on her. Will she even hatch the eggs out? Has she been able to keep them warm enough?