I got 2 buff Orpington chicks at the beginning of the month (they're around 6-8 weeks old) and one of the doesn't seem to be doing well. It spends most of its time sleeping, and hunched up like it's on a roost even though is not. It also seems to be underweight. It's not sneezing, it's poop seems normal. All around it's just not as active as it should be, and I don't know why. Anyone have any idea why?