I just went out to my coop and found one of my 6 week old birds laying very listles and not moving...when you touch him he chirps and wiggles but doesnt get up...not sure what is going on...cant see any sign of damage to the bird and the other 12 are doing just fine. We believe it to be a cockerel. He was just fine last night when I was out there. Any suggestions or causes. Thank you so much for any help.