BelovedBirds
Crossing the Road
the bruising can also mean that they are trying to pip outside of the air cell and perhaps hit a blood vessel. It doesn't always mean deceasedWhat color are the shells? My duck lays white eggs but then it starts getting pale gray splotches like bruises (blood under the shell) on the outside unfortunately the baby has most likely died. You can try to do a sniff test if it smells rotten its a bad egg but if you can't tell its best to just let the duck sit them.
The eggs might also be further along than you believe.