I have an older hen that is constantly being picked on and attacked by my other birds. She has been close to death a couple times now we are doing our best to keep her separated from the flock which is unfair and inhumane. She has been locked up in a small spot where the other birds can see her in hopes that they will get along but it is not working. What is the best way to handle this situation? I'm worried if we give her away to another home the same thing will happen.