(reposted in Managing Your Flock) I have a little problem that seems kinda strange to me; I cant seem to find any advice to address it. I received a beautiful little Ameraucana from my new friend yesterday. She is 3 weeks old. I took her good advice and introduced her to my three 2-week-old chicks in neutral territory. I made a temporary mini-run in the back yard and put them all in it. They all seemed to hit it off well after just a short time. I left them out as long as I could, until it started cooling off enough to need the brooder light. (a good couple of hours). When I put them into the brooder, everyone continued to seem ok. Now, the new girl and 2 of my original chicks are great friends, but my little BR is not happy. She is staying as far from the others as possible, and gets hysterical when they come near her. I have watched carefully, and there is no sign of any of the others being mean to her. I found this when searching: It is generally not wise to introduce a single bird to an established flock. Being alone and new is a double disadvantage, and it isnt fair to them. That being said, only introduce a single hen to an established flock if shes the same size as them, and monitor the dynamics carefully . But the new girl isnt the problem one of my established chicks is so unhappy. BTW, the new chick is quite small, almost the same size as my original chicks. Any ideas? Thanks for your help, you have all been so valuable to me many times already in my quest to learn how to be a good chickie mama.