We built a 20'x20' run for our flock of 13. Our 3 Leghorns escape, daily, by going *over the wall.* We don't mind it, as we originally wanted to completely free range our chickies, but then built the run because our neighbors seemed to continuously lose members of their flock to predators. We have not noticed any predators, at all, on our property.... well, unless Bambi turns violent. I'd like to go ahead and do some part time free ranging, preferably an hour or 2 before they roost up for the night. To do this, would we just prop the run door open at a certain time, and then trust they'll be back home before bedtime? Do I need to worry about them wandering off too far? Should I start with a smaller block of free ranging time, like 30 minutes or so? They are all done with laying by 3PM, so I have no worries about them laying eggs while out and about.