We have a pair of oegb's and are trying to decide on a coop and run for them. We have been looking at the 2 story coop on the coop designs. However, how much room do they require since they are so small? Do they require as much room as my other bantys, if so I know their minimums. I do not want to crowd them. I know that more is better, but I want to know the minimums so I have a starting place.