I live on 5 acres, river front surrounded by Nat'l forest. I have a winter time temporary fence that I put up on one side to keep them away from my garden, deck, landscaping. They are already fenced away from my dogs. But on the open side, they can roam all of Mt. Hood Nat'l forest if they want too. I've lost 1 chicken in 20years to a predator IN MY RUN, not while free-ranging. We have eagle to fly up and down river every day. For some reason they don't stop at the Chicken dinner drive thru, they are much more interested in fish. I always add my 2cents on free-ranging to this very common thread because you will get a lot of the other perspective to not let them free-range. It's up to you, there really is not right or wrong answer or way. You can walk or run. You can let them have "a little free time" or "all day." You have the benefit of them coming back to roost at night so you can work your way back from there. When I started out, I would let them out in the late afternoon for just a few hours of being free. Now it's all day, all winter and in the summer I take down the temporary fence and they stay in their run but it's absolutely huge so I don't have crowding issues. Do whatever works for you.