I've known many on here that have had to do this with their ducklings till all yolk is absorbed and haven't heard of an fatilities. Let's see if we can tag some that may have had this experience where they had to keep the duckling in a cup or small bowl.
@shawluvsbirds
@DuckyDonna
@WVduckchick...
Do you see active veins still inside the membrane? I'd say someone got impatient [mama duck] can you see an opening in the membrane?
I've never encountered this with my ducks but I have seen where their shell was smashed around them and they still hatched,
@shawluvsbirds @WVduckchick