K Epp, sounds a lot like my bird play that I was worried about too. I actually caught it on video. I thought it was rooster sparring (they were only 2 weeks old at the time) but many people here said it was normal chick play. Now just so you know, they were Black Sex Link and Barred Rock, not a Silkie. My silkie stays out of the rough housing lol. Hopefully it is just playing around like mine. And you can keep those beauties. Sounds like a fun flock of colors!
Also, what colors do you breed for a Calico? Just saw one on a site, beautiful! Does anyone here have some Calico photos?