Feather problems

[kmooney]

My chicken looks terrible! I’ve checked her for mites and lice. None of the other birds have a feather problem. She is still laying eggs and running around with the other birds. I can’t figure out what’s wrong with her. See picture

 

[AppuJuice]

Her skin looks red and irritated, is it possible the other birds are picking at her? I'd almost guess they're pulling her feathers and causing irritation if it's not mites/lice. Do you have a rooster? it's possible he's over mating her as well that's my thinking at least

 

[kmooney]

The feathers on her legs look really bedraggled too, didn't think it could be other chickens. My birds free range also, so usually there's not a pecking order problem. I'll watch more carefully. Thanks for your response.