Figured I would take some pictures of the birds once they settled in for the night so you can see the size. Keep in mind these are the Go model - smaller than the Cube, and I have 4 of them open for the birds to chose from themselves. Now I don't know about the "attached run" that you can buy with these as I bought a huge walk in run and attached the coops directly to that. My comments are specifically about the size of the coops themselves. 3 grown Orpingtons in one (the original flock) and 7 10 week olds (3 Bielefelders and 4 Easter Eggers) in the other.