Hi, I hope one of you can help. I was on a trip and 6 hens were lost. They took pictures of them. After returning and walking the area, I guessed it was a raptor. The ones that had injuries seemed to have them on their heads and I observed a big hawk hanging around watching the pen. They were all killed in the daytime in their pen and they now hide in their chicken house most of the day. Two of them had been somewhat eaten, more like a bird would, but two of them only had small marks on the tops of their heads. I put up white flat horse fence tape back and forth over the pen like a weave. I tied streamers to it and put reflective things on the pen. I also made a scarecrow with my clothing. So for a week, all has been fine. Then today whatever it is killed one during the day when I was working on the next field. It seems to chase them in the corner of the pen. The hen was unmarked but seemed to have her neck broken. The hawk was hanging around and kept coming back many times. I locked all the chickens in. Would a hawk do something like that? It seems it would have had to fly in between the strings and get on the ground and corner it. Would it break it's neck? It's a red tailed hawk, pretty good size. Why would one go after hens that are full grown? I am puzzled.