I have a flock of bantams, silkies all small breeds. I put in my newest chickens (small breeds as well) in tonight after dark. I have heard that works well... Not In My Coop!!!! I was putting them on the roosts (the roosts below my original flock) then the leader of the new girls starts in on my milli fluer d'uccle/silkie mix . OH MY it was like a cat fight in the coop lol!!! One jumped on the other they fell to the ground, the noises they were making were crazy!!! I ended up taking my new tough girl and seperating her for the night, still in the coop just no access to the rest of them. Yikes!!! We shall see what tomorrow brings lol!!!