The wire strung between the post is most likely a heavy cattle wire. It comes in sections instead of rolls. I would even say that is overkill. My 2x4 wire has been tested with a 50# plus Lab mix dog full force. The dog still tries but always ends up just licking his chops. LOL
I never had a hawk even land in a tree around here. Now i have chickens and last week i came home to find one perched on my covered run. Like the hawk the coyotes now have a reason to come around(especially if they are hungry). Always plan for the worst when protecting your chickens. I...