Scrambles83
Free Ranging
No rooster, no, but the other ISA we lost at the start of November was the alpha out of the 2 so maybe it was her feather peckingEvery chicken has their own molt. So go hard, all at once, and some go slow over months. My Hattie molts all at once while Aurora has been molting slowly for over 2 months now.
Do you have a rooster? This can happen when a rooster is hanging on.
Another option is feather pecking by someone else at roost time. Another hen may have been or may be eating the feathers from her head.

I’ll watch and see if they grow back now that Bok is at the top of the order.
Thank you!