I have a flock of 12 hens which I believe are red sex linked (I bought them at a feed store). I am raising a buff Orpington roo that will be introduced soon. I want more variety and plan on adding a few EE, marans, and maybe some rocks. I wanted to know if there is any truth to the idea that there will be more fighting if the new hens look a lot different from the established flock. I'm really getting bored seeing nothing but yellowish birds.