Most breeds do well here in Florida. I have some really heavy breeds and they do fine. My coops are open air coops with plenty of ventilation. I also make sure they have a big shaded area to be in during the hottest part of the day. When it gets really hot I spray down the pens in the afternoon, they love that. I also keep large tubs of water in the coops a kitty litter box or dishpan filled with water. ALot of the time they stand in in to cool off when its hot.