We have seven 10-week old chicks left after our dog managed to dig into the temporary pen we set up while finishing their permanent run. Instincts are tough to break! Anyway, we "had" 10 chickens ... two of five different breeds. One of the chickens that survived is a Buff Orpington and she seems very lonely. She and her buddy Buff pretty much stayed together all the time and now she's a onesie. The other two onesies seem to be okay and are staying with the group. But she's by herself -- roosting alone with her back turned while everyone else is together. So my question is whether or not we should get another one or two Buff Orpingtons that are about the same age. Is it safe to do that? Do I need to worry about bringing in diseases or behavioral problems? Should we try to round out the group again or just go with what we have now until it's chick time again next Spring? Should we try to get chicks about the same age? She sure seems lonely. ... If it matters, our chicks were not vaccinated. We asked about that when we picked up the chicks and everyone seemed to think we shouldn't worry about it. So we didn't. Now I'm wondering if this is going to be a problem if we add chicks?