I was in the same coop. I got 5 silkie chicks in May, and they ended up being 4 Roos and 1 little lady. I moved 2 Roos to a friend of my husbands a few months ago, and the ones left were doing ok. But last week we had some nasty weather, and when I went to check on them my favorite of the 2 boys left had NO feathers on his face!!!! I called my husband and said the other roo had to go that day, so his friend came and got him too. I think I made him a silkie lover too. Just today I found a new chicken guy and got an older hen, so I knew she was a she. She is actually sleeping in my living room for tonight. Tomorrow she will get to meet her new feathered family. I would start thinning the pack before they start fighting.