So I took over as caretaker at a small farm with several flocks. One flock consists of bantams. There are two hens that were picked on so we segregated them(together) into an adjoining run(alongside the other bantams) they have been together for about a year now. Unfortunately, one suddenly passed a couple of days ago (waiting for necropsy). Now the hen remaining is acting oddly. Not sure if I should be worried? Could she just be upset her only flock mate is gone?