I let my girls free range during the day and boy what a big mistake that was! I heard this horrible noise and ran outside to see Sully (the rooster in the pen next to them) yelling at the top of his lungs. I looked at the fence to see a huge hawk flying away. If it wasn't for him, they wouldn't have ran back into the coop and been a hawk's dinner. I couldn't find my silkie and thought for sure she was taken but went out a few minutes later and saw her pacing back and forth trying to get back into the run. My question is has anybody ever made a 6' enclosure with PVC pipe? I'm trying to figure if it would be cheaper than chain link. It's and area abput 20'x20'