I've noticed our 16.5 week old roo doing this thing where he fluffs his feathers just a little and puts his head down and takes little tiny steps in the same place over and over. It seems to intimidate the pullets and they move away from him when he does it but he doesn't seem to do anything else while I'm in there. It's kinda cute but a little weird. I threw some pellets on the ground today where there was just him and a couple of girls (the rest were gobbing up pellets on the other side of the run) and he did it and the girls backed away. It was like he wanted to hog the pellets. I know he's at a very hormonal age and probably will be a feathered nightmare for a few weeks. btw he never comes at me or dh so far-he does 'chase' the dog while she's on the other side of the run fence. The kids don't go in the run much-they just look at everyone from outside the run.