I have a lovely buff silkie roo in my banty pen. He is my backup roo for the buff silkie pen. Anyway, I am wanting to add another silkie color to my world. I just don't want to build another pen. I'm wondering what mixes with buff. For some reason in my head I was thinking that buff and blue blended to make some pattern, but in researching it seems that just makes smutty buffs. Am I destined to build another pen or can I mix this guy with something else?