I have two hens in my flock, and they were raised together as chicks. When they were young, they got along fairly well together. They the smaller one had worms right after she moulted, and became extremely aggressive to the other hen, pecking her to the point of bleeding just because she tries to eat or drink. The pecking order was formed long ago, and the aggressive hen used to be very nice when she was a pullet. I am wondering why she is suddenly pecking the other hen for no reason. Is it because of the combined stress of moulting and having worms? How may I treat her situation?
Please help!
Please help!