I’m new to raising chickens. Not sure how old she is, but is still laying, eating and drinking just fine. Gave her a warm epsom salt bath, after taking this picture, to clean her bottom up. Most of her feathers are missing on her stomach area as well.
First of all, it would help if you stated what your concerns are regarding your hen. You are familiar with her behavior and habits, etc, so your intuition and input is important. How is her behavior different from what it usually is?
It would also help to pinpoint your location on the globe. We can derive clues from that.