I have a hen who I thought had been killed but she turned up a few days ago to eat then disappeared again. Well I found her with a nest and 5 or 6 eggs,the problem is she's in a very unsafe area, and I don't know for sure how old the eggs are. Should I just leave her and try to make the area safe or can I move her to a safe spot? How can I figure out how old the eggs are and if they are fertile? any tips or ideas on this broody mama would be much appreciated.