I used to let my chickens range across 5 acres until the predators started to get the upper hand (and I got tired of cleaning poop off my patio--and I got tired of them digging up my garden). I have used hogwire and t-posts but found the best solution to be electric poultry netting that I can move around to new grass after they decimate what they're on. I use a solar charger. The netting is green and blends into the landscape pretty well. Occasionally lighter chickens will fly over, so I clip wings when necessary. The system was pricey compared to other options but it has worked well for 4 yrs now.