I HAd 7 and the only mixed I have is one of my roos that was given to over a year ago. I say HAD because we were just surprised with a hatch of 10 winter babies. We have no clue which hens or which roo even. But they are , beautiful already at 3 weeks. So whatever silver laced wyandotte, RIR, EE, dominique, and whatever the main roo is will look like if mixed should be interesting. I'll post pics soon. When I was younger than 4 I remember my grandpa having chickens and they were mixed but they had some beauriful ones. I cannot wait to see how the babies turn out. I really want to get a bantam so I can have one in the house (with diapers of course) and some silkies which I cannot find nearby or even polish. I don't think i'd mix those but it depends. I'm not breeding them for purposes other than our own family's needs so the mixing doesn't matter to me one bit.