I have five Leghorn hens. Earlier this spring I think four of them molted. There were feathers everywhere and they looked rather scruffy. However, their egg laying did not slow. Since then, the four have all had no feathers on their necks! Is this normal?? MOre importantly, today I noticed one of them doesn't have any feathers on her butt, and it looks funny. These are two different issues and I'm more worried about the hen with no feathers on her butt.