I have 5 cortinix quails, 4 females and 1 male. All the females feathers are plucked out on their backs towards their rearend. Now I have seen the male, jump on the backs to do the nasty, but he hangs onto their necks, not the backend? I don't know who or why this is happening? Do you think they are plucking out their own feathers? or is one of them doing it to the others? The male has his feathers plucked out too, but not nearly as bad.