My 4 barred rocks are now 14 weeks old. Last week we had 5.... but one was killed by one of the other 4 at night. Since they were young (I've had them since a couple of days old) there's always been the chest bumping thing and pecking order activity. But lately it seems to be getting really rough.... and thus the murder in the coop. My question is.... does this die down after a while.... are they at a stage (14 weeks old now) where the pecking thing is at a final stage to establish dominance? I don't think it's a boredom thing... or being cramped. the coop is 20 square feet and their run is 8 x 12.... so almost 100 square feet. The other thing I noticed is when I look at them in the run... there is really no chest bumping to speak of.... it only seems to be intense when I let them out of the run for a little free ranging... it really gets wild then..I try and break them up with my small rake (my shepherd's pole).... any help here would really be appreciated. Thanks.