Quote: Rilly. Well, no hawk is going to keep me out of my own yard. How stupid, regulations or not. Sheesh. Sometimes, this stuff is taken to a ridiculous extreme, I'm afraid. I'm not advocating anything here, but wow, how unhelpful he was.
I always used neon colored nylon mason's line crisscrossed over pens, never fishing line, which would be heck to deal with. The nylon string lasts for years. And never line alone, but we hung CD's from it, which dance and throw flashes/reflections all over in a breeze. It messes their dive up. I've been semi blinded by a flash from those in bright sunlight myself on occasion since they're like little mirrors swinging and dancing all around. Never had a hawk come into a pen with these in play, though in truth, we've never lost one to a hawk in all the years we had chickens, even free ranging on our mountain property. Part of that are the roosters, part is they have good cover from leyland cypress, hemlock and rhododendron that we planted over the years in winter and all the oaks in addition to that in spring/summer/fall.

I always used neon colored nylon mason's line crisscrossed over pens, never fishing line, which would be heck to deal with. The nylon string lasts for years. And never line alone, but we hung CD's from it, which dance and throw flashes/reflections all over in a breeze. It messes their dive up. I've been semi blinded by a flash from those in bright sunlight myself on occasion since they're like little mirrors swinging and dancing all around. Never had a hawk come into a pen with these in play, though in truth, we've never lost one to a hawk in all the years we had chickens, even free ranging on our mountain property. Part of that are the roosters, part is they have good cover from leyland cypress, hemlock and rhododendron that we planted over the years in winter and all the oaks in addition to that in spring/summer/fall.