I have 2, 13 week old cockerels, and they reek to high heaven. They're not sick, and they don't do stuff my pullets don't do. I thought maybe all chickens smelled bad so I grabbed a couple of the girls and took a good whiff, but they don't have any sort of unpleasant odor. I can't even get near the boys without pulling a face and plugging my nose. Is this normal?