We had one American Game Fowl hen and today we added 2 Buff Barred Cochins and 1 Mottled Cochin. All three are 2 months. I am trying to keep them separate so they all get use to eachother but they are jumping up and slipping through the fencing I used and they are just trying to roam around the rest of the coop. As long as my hen doesn't mind, it wont be a problem. If it is a problem I will have to use a different fence we have with smaller holes. Pullets are just like crazy little kids! I love it and can't wait to expand the space we give them and add more chickens to our flock!