I have a Wynadotte broody hen sitting on 10 eggs since April 6th. On the weekend, I noticed that she wasn't sitting on one of the eggs, a very dark brown egg from a Copper Marans. There are two of those dark eggs under her. I keep putting it under her, but frequently she had it out from under her again, and a few times, it was rather cool. The odd time it was both brown eggs that were out from under her, never the other lighter colour eggs. Today again, one of the brown ones was out, and quite cold. Is she trying to tell us something? Do they know if there is something wrong with an egg? I candled it on the 14th and saw something inside, but nothing moved. I'm not sure if it was too early to see movement. I don't have too much hope for these two dark brown eggs. Should I persist, or candle again? If so, by what stage should I expect to see movement if there are live chicks inside?