What's your humidity at?
This article is really is a really great tool that I've used-
Article 'Guide to Assisted Hatching for All Poultry'. It lays out the step by step guide for assistance much better then I can. I haven't looked at this one but it might be good, too -
Assisting Call Duck Hatches.
When a chick is shrink wrapped the membrane will be hard and yellow-brown in color. The chick will usually make a lot of distressed chirps to let you know that is is stuck. A healthy membrane will be white. A little bit of yellow does not mean it's shrink wrapped, just that it's drying out a bit. I can't tell from the picture, but if you think he's shrink wrapped you'll want to apply coconut oil to the membrane to loosen it up a bit. Then you'll want to see if he's still absorbing the yolk. Chewing and yawning means he's not quite done absorbing the yolk and needs more time. Leave him alone for a few hours and then check back to see how he's doing. If you ever notice the membrane drying out more, apply more coconut oil. Make sure to keep your humidity stable.
