One of our two roosters, a leghorn bantam, has become extremely lethargic. I went to give him and his flock some bugs only a little earlier today, and he was sitting on the ground with his wings at an awkward angle. I walked over to him and he just sat there, so I picked him up. He is very thin, a bit floppy, and can't have eaten anything for a good few days, because his crop is all but empty. And his rear is clean, so he either hasn't been going toilet at all all doesn't have any diarrhea. At the moment I have him on a towel next to me inside, and he is just sitting with his eyes closed. I am very worried, and have no idea what to do, as I can't seem to find anything on the internet. I have tried to spoon him some water, but he doesn't do anything!! *Please also note that I have been away for the last five days, and have not been able to monitor or look after him. So I have no idea when this started or anything. They (my family) had mentioned that they hadn't notice him crow much while I was away though, and when I gave the flock water this afternoon they were all extremely thirsty. So I would expect dehydration or something, though he was drinking fine on his own and everything with the others when I watered them.