I understand, yes they do hate change, I had a single that was given to me from a friend & my older chicks would pick on him, but my silkies accepted him & they were separated from the teens for a while & then reintroduce to which the teens picked on him again, but this time he had places to hide in the big coop. After about 3 weeks they finally accepted him. Now I'm working on introducing my now 8 week old Sizzlers, sneaking them in as extra silkies, but they are still smaller, so it's not working yet, but they sleep with them in the roost, which I transfer them after dark & transfer them back to the Chicken Tractor. But I supervise & let them out during the day every time, we're still working on it. Just make sure she has somewhere to be able to hide & good luck, let me know how it goes & as will I.... Hugs