Missing feathers and dry skin

[dischick]

Hello,

So I noticed that one of my BRs looked liked this (see below) and it seems to cover a large area. I do not see any "dirt" just dry and scabby skin. I haven't notice her being pecked...as a matter of fact, she's queen b....the run is sand with DE. They do free range. Should I treat for mites? She just came into laying last week so I don't believe she is molting. Thought?

 

[Wyorp Rock]

Looks like feather picking and she has some new pin feathers coming in.

Here's some information on lice/mites:
http://www.the-chicken-chick.com/2012/08/poultry-lice-and-mites-identification.html