So I have this 18 wk Delaware roo that has a leg problem. He lays down alot and when he does walk he's slow and kind of limping. There's no signs of bumblefoot. I already treated with coccidosis with corid and lice with poultry dust. I felt the legs today and it felt like the legs & joints connecting up to the body are very warm, at least warmer than some of the other chickens I checked. Twice I've had to place him on the roost. He roosts closer to the ground. Any idea what this might be? He eats & drinks normally.