I have lost 3 chickens, all full-grown, recently. Two hens, totally gone, roo put up valiant fight, but lost. Thought varmit got in my coop today, and killed my Buff Brahma, but upon further invesigation, we are sure it did not. Hen had been trying to lay on eggs for months. She had started to molt, looked okay two days ago, just weird from loss of feathers. Is it possible the other chickens went after her after she died? She was missing feathers, had all wings, legs, head still attached. She looked like she had been pecked a lot and her feathers pulled out. What are your opinions regarding this? I have had my chickens for 19 months. I will add I have two mean roos that I am culling this weekend. I appreciate any and all opinions.