My coup opens up to a chain link run. I have a six by six foot space made with 3 foot chicken wire with a large dog carrier for my broody hen and 11 chicks. They are mixed breed chickens with no bantam in them. They are almost two weeks old and growing fast. I'm wondering if they will be too big to get through the chain link fence when they are big enough to fly over the 3 foot chicken wire nursery. What do you think?