I just went to check on my hen because I'm not really sure when she started brooding or when the chicks would hatch and today is within the 19 to 21 day period. When I lifted her off the nest I found a dead chick that was still wet. Is it possible that she might have stepped on it and killed it? Also I didn't see the remains of the egg that the chick hatched out of, is this normal? I'm a little worried about the other chicks now. Is there anything that I can do?