This morning, I discovered one of my 21-week old EE's had chipped the end of their top beak. It looks like there is like a thin part of what the beak used to look like left, as if there are like, 2 layers on the top beak, and the top layer had been chipped off. So, I want to know if this will grow back naturally, if there are any problems that I need to address, or how I can cure this? It's getting below freezing at night now, I have a heat source in there to keep it just above. So, please help! I need to know how to cure her beak, or if it will regrow on its own!