The dark red skin makes me wonder. I've had chickens in such bad molt that they were nearly as featherless as those about to go in the oven, but the skin was never dark red like that.
Do you know, after I took this picture it got worse even. She ended up with I think 2 flight feathers on each wing and looked ready for the oven. But I didn't have the heart to take another picture of the poor girl LOL.