These are our first ducks. They have been under our broody cochin, who is watching them and gently mothering as the hatch. Out of 12 - 4 have hatched fully. 3 look like they have died before making it out. We are leaving them in there just in case. All 3 have a nice size hole and their bills are sticking out, but they appear not to be breathing or moving. The others that are still in the shell, we can still see them moving around through the hole. The 4 that have hatched seem fine, they are drying off and resting. Is it common for muscovies to make it this far and die just before hatching. It has rarely happened with the chicken eggs we have hatched, that's why I'm asking.