I live in Northern Wisconsin and am a first-time chicken owner. I purchased 6 pullets from L & M Supply last Thursday. 2 Barred Plymouth Rocks, 2 Wyandottes, 1 Mystery (I think it's a Welsummer), and a Buff-laced Polish. I didn't realize how much smaller the Polish will be compared to the others, and now I am worried she will be bullied. I've been so worried, I'm waking up at night! Any advice?