I'm wondering.... how long quail eggs stay good in the refrigerator? what is the best way to crack the eggs for frying? I seem to have a problem with the shell flaking and the membrane being a little tough. And as far as fertility.... is there a season for this and do I have to check the males or eggs to see? If so, what would be the best way too do this? I don't know if it matters but mine are Coturnix.