Can't tell if duck is breathing

[GRacer3648]

Right now I am hatching Rouen ducks. Two are in zippers and 1 has already hatched, the other ones haven't pipped yet. I just checked on them and I can't tell if the 2 in zippers are breathing. They have been in this position for most of the day. I know its risky to help a hatching egg but, do you think it's worth it?

 

[PirateGirl]

sometimes if you shine a light in the egg or gently tap the shell with a fingernail you can/will see movement, this might quickly help you figure out if they are just resting or if something more serious might be going on