I have a few barred rocks that I have confirmed are female (one roo in the bunch) and they are just plain mean. It’s like a light switch flipped one day. I have hand raised babies several times and they’re always so sweet.. these ones were too until one day they just started nipping at me! (Biting not pecking) I won’t even be approaching them and they’ll puff their chest up and charge at me. I’m totally flabbergasted. The rest of the flock is sweet as pie and picked on constantly by these three. Is there any hopes of making them nicer??