Bald spots...tried everything

[mammat]

Several of my hens have bald spots on back right above tail. I first thought rooster damage so i bought saddles. It helped with one but not the other two. I then thought low protein so i mixed layer with flock raiser and supplemented with cat food. It did not help. I did have mites but have treated three times andd total coop cleanout x 2. Did not help. I do see the occasional feather pick and the offender eats them. The spots are totally bald. Plucked clean with no blood. Im not sure what else to try. I dont understand why the saddle helped with one but not the others and my favrolle also is bald on her but which would not be an easy place for a picker. At this point i cant tell who is the offender!

 

[Judy]

Feather picking is usually considered due to either too little space, boredom (not enough opportunity to forage,) or too little protein. If it is well established, it can be very diffidult to break. Here are a couple of links that might help.

http://www.multiscope.com/hotspot/featherpicking.htm

https://www.backyardchickens.com/t/517547/peepers-removed-and-no-feather-picking-d/0_20#post_6586027

https://www.backyardchickens.com/t/697052/i-think-i-found-a-miracle-cure-for-feather-picking/0_20

 

[mammat]

I think it may be boredom. They have a large coop and huge outdoor run but they have depleted it of any vegetation. I feed them lots of treats but they cant really forage. I will make some flock blocks and just started growing fodder for them. I am hoping my hubby will build me a tractor soon too. I just dont understand why the feathers didnt grow back with the saddles on?