Here's the deal. We built a chicken tractor and have been using it for 2 months now. We live in the country and the ground is very uneven so it has been a bit harder to move around than we thought. So we are making our chicken tractor permanent and adding a run to it. Because of living in the country/forest area of the Oregon coast I'm afraid to let the girls free range. Lots of creatures and stray cats. Plus our neighbors have a bird dog that is loose all the time and wanders onto our place. So we figured a chicken run was the way to go. Here's my question --- do we need to put something over top of it. The fence is going to be 6 feet high and the run will only be used during the day while we are home. I know we can clip their wings by my husband is not down with that. Can chickens fly over a 6 foot fence? I have a Orpington, a New Hampshire, a Delaware, a Wyandotte and 2 EasterEggs but was told their were Ameraucans. They are 4 1/2 months old.