I have a rooster that got a few months ago he might be about 2 years old. I went to feed everyone today and he was sitting in front of the coop. It was raining and he was just siting out there not moving but his eyes were open. I picked him up and he didn't fight it at all. he can move his legs and stand. if i put water on his beak he will drink. if i hold him he goes to sleep. he seems alittle skinny and his crop feels empty. he has no injuries that i can see. all my other chickens and ducks are fine. I put him in the garage with food and water. his eyes are clear. there is no discharge from his nose or mouth and his comb is still red. What could be wrong with him? P.S. he was already named when i got him lol.