I'v.e posted this everywhere & still don't know what to do. I have 10 pullets 8 months old they are RIR'S & one RIR ROO who is 7 months old. Not long ago I caught the roo pecking the pullets feathers out around their vent & feeding them back to the pullets. Then, I guess the girls caught on & started doing the same. Not all the girls are plucked but atleast 6 of them. It really makes the girls look teribble. I put some blue kote on the area around the vent.Then a few days later I put rooster booster med on them. I also have been feeding them more proteins such as fish , meat, boss, along with their 17% laying pellets & some veggies from the garden. Well, yesterday I put more blue kote around three of the girls vents cause they looked raw. This morning I was checking them out & the roo had a purple beek none of the girls have a purple beek. What to do now? Will , they ever stop this are what? They only peck the vent area why their only? I have inspected all for mites & found none. Does anybody know are should I take one to a vet. One person suggested their going canibalistic & said I should cut their beeks off. I don't want to remove their beeks.