I'm thinking of putting a younger chicken with another flock of older chickens. I've been wanting to do it for a while and now that she's laying I think it's time. Lucky, the one I'm trying to intoduce, is about 7-8 months old. The others are about 9-11 months old. 5 out of 6 of them hate her. One chicken will walk with her without pecking her. Another avoids her, but doesn't hurt her. Should I try to just put them together or the whole flock?