Has anyone had success with the Hawk Stopper Visual Deflection Nets? I really want the girls to be able to "spread" their wings. Their coop is small (I only have 5 birds...down to 2 due to hawks....thought they had moved on and lost the first bird, then when I went away the people watching them forgot and let them out, 2 more gone....and they had just been outside for 2 weeks). I live on a farm and would love for them to be able to run around more. The sides would be electrified like there coop to keep the ground predators at bay....just wonder if the netting really works? They claim it is a "visual" deterrent for them.