I have a hen that has been sitting on eggs since mid July. The problem we are having is the kids took some of the eggs some time at the end of July when she got up to eat and mixed it with some of the other hens eggs. What a mess... More where laid but I am not really sure how old each egg is? If another hen lays an egg in her nest she will break the egg. I tried to candle the egg but they are too dirty to see anything. This morning it appear one was hatching but it was rotten My question is, will she know if an egg bad or not? or is she just crazy? Should I remove them?