One other note: Hawks around here need to come in at a swooping landing and not drop directly down so the cd's discourage that completely. three years and never had one in the run. Yes, in the yard but not land in the run nor have I ever seen one try to land in the run and we have a pair of...
Knock on wood we have never once had a hawk or other sky predator go into the run. Our run is about 20x50. We strung filament line (a strong fishing line would work) and tied cd's from the lines. I have five lines with one or two cd's hanging/dangling from each line. Light reflects off the...