I am a beginner, and have a small flock of: 2 Easter Eggers, 2 Plymoth Rocks, 2 Red Stars, and 3 Buff Orpingtons. Can I put a sebright in there? Are sebrights very friendly or are they mean? I've heard so many different things! Are they decent layers? Can I even put a bantom in with my other hens? How big are they? I love the way they look! I know nothing about bantoms in general. Thanks so much for your time.