My rooster seems sick and I am hoping to get some opinions on what is wrong and advice on how to treat him: Symptoms: -Noticeably lethargic for the last few days - sleeping/napping, not interacting with the other birds as he usually does, moving around but only if he really needs to do so -only crowed once in 2 days when he normally does this several times a day -Not eating much. Eating, but very small amounts. Napping over the food dish and then pecking at it when the hens are doing something else. Other observations: - no visible injuries - poop looks normal (not runny) -no coughing, wheezing, or sounds of breathing issues - no other chickens appear sick We isolated him yesterday in an impromptu rooster infirmary (cage) and put him some favorite foods (scrambled egg, cracked corn) plus extra olive oil and water. He ate a bit but not much. He seems to neither be getting better nor worse. Any ideas?