What is your opinion on a mixed flock, and which breeds DON'T do well with eachother? I ask this because currently I have a polish rooster, two bared rock hens, an arecauna hen, a bielefelder hen and cock and my boyfriend is wanting to add some silkies and other misc. hens. I'm worried about segregation and bullying more than anything else. Is it possible to have a flock of many breeds?