Hi everyone, One of my 2 month old chickens, who we suspect is a rooster, is sick. He was perfectly fine this morning, eating and all, but then we let him outside where he would usually go crazy eating grass, but today he just stood there not eating and barely staying awake. I then when up closer to him, and usually he would be scared of me and run away, but he didn't move. I then went closer, he then ran away and completely fell over. I picked him up and he can barely hold his head up or keep his eyes open. He walks almost as if he's drunk. His poo is the consistency of water. We now have him wrapped in a towel inside, but he hasn't eaten (although, his crop is full). He is now asleep as it is night time but has been asleep for all day essentially. His comb has seemed to darken. Other than that, there are no visible symptoms thankfully. It is currently Autumn heading into Winter. We went to the breeder and injected antibiotics, and will do so for the next week. What could be wrong and what do we do? PLEASE HELP! Thank you.