The other day I had my first ever chick to hatch.It was wonderful,but just a few minutes ago it died. I have 5 more fertile and I hope they hatch. It is totaly black inside. Except for the air pocket.But the other day I did notice a gray spot between the air pocket and the blackness of the egg. It is about half to under a half inch thick. Does anyone know what that is. I think it is the rest of the room the chick has to grow before it hatches.