Go to their websites and look at their charts. They offer hens, straight runs or roos only. Most do not sex Bantams.Most hatcheries are only going to sell straight run for chicks. Your better to try to find a local breeder or buy from the hatchery and order the minimum especially if they have what you want. Whatever you order you may lose a couple so ordering a few extra would make up for that. If you end up with more than you want you can always sell a few. Plus you have a better odds of getting pullets. It is like playing the lottery. Good luck