Well they took it up a notch yesterday! Maggie, the smaller of the 2, pulled out a bunch of Lilly the sussex feathers out and they had a few kickboxing sessions. Lilly is so big I thought she'd be the dominant out of the two, but Maggie persistent. After licking her wounds, so to speak, the went straight back in and kept pecking Lilly on the back of the neck and continues to do so every time Lilly is near. The rest of the flock are relatively peaceful, it's so strange that these two youngsters are the only two fighting, and the smallest of the 2 is acting like Chuck Norris! No blood so far, so I'm not too worried.