Please help - why is my head hen balding??

[hen-nessey]

My head hen is balding like this in the same area on each side. It’s like it happened overnight. I didn’t get to inspect her for mites/lice at sundown and I’m concerned. No rooster, no other hens are having this. No one’s pecking her visible skin. She’s still laying and only recently started, she’s only 7-8mo. Any thoughts??

 

[Lacy Duckwing]

That looks like a plucking job to me. Depending on who your plucker(s) is, you might have other hens who also has that, but aren't showing yet because the plucker is just getting started.