Thank you everyone! I so appreciate the advice, everyone is so great. So the flock that I got my single hen from is down to two hens now. I took the two hens that I had because the one that died was getting bullied very very badly. So these two came to live with me. Well now that the poor little girl that was getting bullied has died I'm thinking of just bringing the other two hens here, as my friend just had a baby and they will get more attention here. So, these hens have lived together before, about six months ago, and the hen that I have left now never had any issues with the other two. I'm wondering if that will make all the introductions easier?? Or do chickens not have memories like that?!