I have a 3-mo-old golden-laced wyandotte (Bachira) that started picking and eating her flockmates' feathers about two weeks ago, during a particularly bad bout of weather when they were all cooped up in their house. I tried giving her Aviacharge, yogurt and boiled egg yolks in case it was a protein deficiency (they're currently eating Purina Start & Grow). I tried putting Blue Kote and Hot Pick spray on her most-picked victims, but she seemed to be more drawn to them then. And I've tried letting them all free range for a few hours during the day (they have a house that's 6x6ft, and a fenced-in coop that's 16x16ft). But after two weeks of the new regime, Bachira's still compulsively going after the others' back and tail feathers, and I'm starting to think she's just nutty. She seems to bully the poor Australorp rooster most, and several others now have nearly bare backs. I wonder if it's a breed thing, because of the 15 various breeds in the flock, the only other GL Wyandotte is the only other pullet I've seen picking feathers, though she's not nearly as bad as Bachira. Today I finally separated Bachira and the other wyandotte (Prunella) and put them in a portable coop. But Bachira just attacked Prunella, so I moved Prunella back to the main coop and left Bachira the Feather Picker alone, which of course has made her very upset. Any other suggestions as to other cures I can try, besides a soup pot as my friend here suggested? Does a protein deficiency take more than two weeks to fix? Are some chickens hopeless feather pickers? Should I just find Bachira a new home, or would she probably end up picking on someone else's birds? Or might she lose her taste for feathers if she's separated for awhile? How long can you keep a chicken separated before the flock will no longer accept her? Thanks!