Right now I have some Barred Rock Hens--only three of them. My rooster and the rest of my hens died of some disease that some new hens brought in. Instead of getting more Barred Rocks I decided I would get some Salmon Faverolles. I only have one pen. Do you think I'll have to get rid of my barred rocks in order to safely have the Salmon Faverolles? I don't want mutt chickens, and I also don't want my barred rocks to pick on my Faverolles. (I read that Faverolles tend to be on the bottom of the totem pole)