I have a red tail here and honestly they are pretty territorial, so you may not have multiple threats for long if it’s settled in. The one here screams at me (with that classic bald eagle noise ) anytime I am in the field directly across from the house out to the ridge. There is another about a mile west. He also drives off the eagles on occasion, but know better than to mess with my ravens.Thanks to everyone for the replies. Now that I'm aware I've watched closer and done some research. I now believe we have two threats. I've become pretty convinced that the bird in the photos is a red tail hawk. I've seen two of them together at lower altitudes and they are definitely big, much larger than a Coopers, and from pictures on the www, their underside markings seem to match those of the red tails. If that weren't bad enough, it looks like we've also got a whole nother set of predators (parents and chicks) living in a tree just a couple of houses away. These are smaller but I still can't identify or get a photo of them. Looks like this may be a long summer, but at least the chicken compound is very safe from aerial attack, and the girls seem pretty content to stay inside. Still, I'm not the least bit happy about this.