Hi all - this is our first time incubating chicks - after candling, we saw that 11 of the 12 were viable. Then on day 21 nothing pipped or hatched. I thought they had died. Then on day 22 came out a very healthy young chick. On day 23 another healthy hatched. In the night to day 24, one hatched with splayed legs (I followed the instructions and put a bandaid on - now it's sitting correctly - hopefully the legs will grow correctly). And then just now, on day 24, another one hatched but it has no feathers around it's neck and chest!! I have googled around but couldn't find anything about this. The chick seems healthy, very alert, and has feathers all over the rest of the body and the top of it's head, but pink bald skin on neck on chest. What is this? And is there anything I should do?? Thanks!!