I have 14 chicks (13 weeks old). One SLW cockerel has been staying in the coop all day while everyone else goes out to forage. One of the other cockerels appears to be a bully towards this chick and chases him whenever spotting the slw chick. Is it possible he's been cast out of the group by the more aggressive cockerel? He did have some reddish droppings, but according to the chicken poop chart it just looked like the intestinal lining poop...not dark red like cocci. His poops are now normal looking, but he's still hanging in the coop away from the rest of the flock. He's definitely eating and drinking. Is this normal? Any suggestions?