HELP! hatching duckling question
When the membrane starts going more tan like that, it means it is drying out and you need to raise the humidity. If you want you can dab a little bit of warm water on that spot with a q-tip to moisten the membrane, then raise the humidity in the incubator and don't open it anymore. Each time you open the incubator you will lose alot of humidity in there and the membrane can dry out and make it more difficult for them to hatch.
What day of incubation is this egg on? Ducklings take a long time to hatch, about two days for the full process. There is no rushing it and if you help them before they are ready to hatch, you can actually kill them. So just take a deep breath and give this guy some more time. They can start to rock days before they are ready to hatch.
Ok, can you see any blood vessels in that clear membrane that is around her? If the blood vessels in that membrane have disappeared (the blood has drained from them), then she is ready to hatch. But if you still see blood vessels with blood in them in that membrane, she is not ready and you shouldn't help anymore just yet. She could bleed out if one of those vessels break, and her yolk sac will not be absorbed yet if there is still blood in those vessels, either. That is the indicator of when they are actually ready to come out. Keep us updated, and good luck!