Missing rear feathers

[OversaltedEgg]

I have a 8 month old chicken who’s at the lowest of the pecking order. I’ve caught her pecking my other chickens feathers to the point where their skin is exposed. I have 3 chickens that look like this. I have increased their protein in their feed to 19%. Will I have to wait until their molt for them to grow back or will they grow back before? Is there anything I can do to keep this area warm during the winter?

 

[azygous]

The broken feathers won't grow back until molt. Any that have been pulled out will probably grow back unless they are pulled out a second time. Then they probably won't grow in until molt.

Feather picking, I've found after having this issue in my flock for sixteen years, is rarely a dietary issue. Rather, it's a brain disorder, a compulsion of the individual. I've found there is no cure, but pinless peepers can sometimes slow it down.