I've read this somewhere but i can't seem to find it now. Mine are now 2 days late, and the 2 left have not pipped. i tried candling them to see if could see anything and i couldnt. i've read before about poking a hole in the top of the egg through the air cell to see if you can see them moving... should i try this or just let them hang out another day or so? the other 2 hatched right on time and are fluffy and bouncing around waiting to come out.