That looks alot like a cooper hawk, I had alot of them after my chickens to. I use to free range my chickens but since I have had hawks (coopers and redtails), neighbors dog, and other predators I believe I am going to put up a run for my chickens not sure exact what to do yet either but I know I need to keep from losing my girls. They sure are going to be unhappy when they can't free range this spring/summer. They sure do love to spend alot time up by the house. I was thinking put up fence with fishing line across the top have you ever heard of this or would that be bad for the chickens. I all for recycle stuff too.