I had a similar situation with quail recently. Here’s what I did. I used a Qtip with a little mineral oil to moisten the membrane. I had used coconut oil previously on assisting a chick and the other chicks kept pecking at the coconut oil areas on his body. Mineral oil isn’t actually greasy so used sparingly it works better than water for me. Once the membrane is moistened you can see the blood veins clearly, avoid those but if you do pull them back and they bleed stop, put a dab of corn silk or corn starch on the bleed point. If there are lots of veins it’s not ready. Leave that section alone. Mostly make sure it’s getting air and breathing. I opened and moistened all the way around and if there weren’t veins showing using tweezers to make a narrow zip line all the way around. Put back into incubator and let the chick expand and kick the shell off on its own. It seems to help finalize the hatching process for natural development. Any bits stuck to the chick when it fluffs up can be dabbed with mineral oil (Qtip) the same way to work stubborn bits off. If it’s not quite ready put it back in and maybe do a little more in a few hours. It took me overnight to get a couple malpositioned quail babies out. The chick I did with the coconut oil took a lot longer to feather out normally but he’s fine now, I just had to keep him separate from the other chicks for a week. Good luck.
