I know. We have bald eagles, large horned owls and hawks here. I saw a hawk on the top of our flag pole yesterday. I'm pretty sure that was/is the threat. It was a large one. We have had an eagle attack before. The most devastating experience in chicken keeping that I ever had. One of my deer hens died three days later from shock. Bless her heart, she kept trying to tell me she was terrified of the sky, but I was busy trying to save an injured hen. I feel bad that I didn't pay enough attention to her. I checked her over and she wasn't attacked, so I concentrated on the one I might be able to save. We live and learn....but it's hard.