My oldest hens and 1 roo are 22 weeks now and the youngsters are 13 weeks. I got them all together awhile back and things have been just fine until last week. I have a polish with no pretty white feathers on his head (poor little guy has been plucked) and a white frizzle with no tail feathers. Why are they getting pecked at so bad? All was fine for over a month till last week. The little frizzle was so bad that we had to seperate her. At what point do I try and put them all together again? Will they ever all live together?