Well, we're just about done building the coop for my 2-week-old chicks, and now my husband wants to know what I want him to do for a run. The more I think about it, the more I wonder if we really need a run. My backyard is about a quarter acre, and the whole thing is fenced with 6-foot wooden fencing - no gaps at all. I've been letting the chicks out daily to run around the yard (I'm out with them most of the time, and when I'm not I can see them easily from the window), and I can't see why I couldn't just let the adult chickens out in the yard and just shut them in the coop at night. I really like the idea of them having a whole big yard to run around in rather than being confined in a little dusty run, and it would certainly save us a lot of work and money in building it. My only real fear would be the two stray cats that occasionally come through our yard, but I don't know if a run would really keep the hens totally safe from them either. What do you think?