Ameraucana chick #4 has just popped the top off it's shell and is chirping cause it's still in the thing. Got two Australorp beaks sticking out of the shell, the 3rd has broken the shell but not progressed any further, and there are two more Ameraucanas which have cracked the shell but not any further and there are 3 eggs with no sign of a shell break yet, but then, today is the due date.