i currently have 4 cochin bantams, 2 crossbreeds and 1 sebright in there with 13 birmingham roller pigeons.my loft is about 2.5 meters high 1.6 meters wide and 2.6 meters long.the pigeons are all ontop and the chickens on the bottom.ive calculated it and it comes out to 36+ square feet.all my birds live happily and ive not had problems so far.i would like to get a 5 more rollers as i still have two nest boxes empty and a roller hen without a mate.id also like to get like two sebright hens and 3 silkies but dont wanna cause any problems,what are my limitations based on my coop