Our new coop is almost finished. It turned out pretty big but with 12 babies I think they will have lots of room. Still have to build the nesting boxes and put up the roosting poles but they are out of the box and have fresh air and room to learn to fly. I love the window. It doesn't open but its from an old farm house that was over 100 years old. We used the dog run that our lab wouldn't stay in. We still have to cover the top and add a ladder from the coop to the run.