They are 4'x3' and 5' tall... I didnt use chicken wire.. I use Cattle fencing. I bought two 50ft rolls, 4ft tall and 3 ft tall which I used for the sides. I didnt use any vertical posts, just wired the sides to eachother, which makes it strong enough to support a cap and roof. I built a base and cap out of 2'x4's and just stapled the fencing to them. I used red corragated roof screwed to the cap for shade... but I also bought cloth painters tarp (4'x15') to cover the top and sides, because the sun is brutal. The cloth is removable... I have two perches, one you see, the other is up high where the sleep at night. I made the gated opening out of cattle fencing too.
I will get some detailed photos this afternoon