We are just about ready to move our chicks from their brooder to their coop. My mother in law was gracious enough to gift us with a pre-built coop from fleet farm. It says that it is supposed to house 5-7 chickens. It is a small coop with 3 nest boxes, 2 roost bars, and a run. I measured the inside of the coop because I was concerned it was a bit too small. The total square feet of the inside (not including nest boxes) is only about 6 square feet. I read that chickens should have at least 4 square feet each. We have 6 standard-sized chickens (not bantam). The chickens will have access to a larger fenced in area. I'm concerned that this coop is too small. Is it going to be big enough for our girls?