I have a Buff Orp that has been pipped since this morning, it has made a hole in the shell that is a little bit smaller than a dime. I can see it's beak, it does look like the membrane may be sticking to it's beak. It can open its beak and it can breath, but it doesn't seem to be turning at all to zip. Could it be to big to turn to finish zipping or is this normal?? I have never had a chick pip a hole this big and not already be zipping.