One thing we did was build a tractor in addition to their run. When I'm home I shuttle them all over the yard, and they make excited travelling noises as I move it along. Almost everyone in our neighborhood stops to talk to them, and the chickens talk right back. I'd love to free range them, but we have a huge number of coyotes right near by. The only thing is our roosters aren't always happy with the status quo, and will gaze into the distance longingly while the hens are happy as could be. They have a good life though, and are busy, curious little characters. I don't know what I'd do without them!