Hi, I have a couple of silkies I am going looking to be introducing into my flock. It's a small flock I just started, 8 birds. I was going to cage them separate in the same pen for a while just to get them acquainted. I was told that I shouldn't mix them because it's likely the others would peck and kill the silkies. Is this common? They're all young birds, about 4 months and the silkies about 3 months. Any advice is greatly appreciated. Thanks.