Someone please tell me what to do.... I saved these abandoned duck eggs and I can’t tell if they are alive. There are ten of them and today is the first day they should hatch. I can see what I think is the embryo and the embryo eye on three of them and they all have this sircle on their shell that is kind of red tinted. One of my eggs has a giant black object in them does this mean it is dead.? Plz help!