I have a silkie rooster who has had a respiratory illness for about a week. Swollen eyes, runny nose, not eating/drinking. On Tuesday I started giving him tylan 50 dissolved in water. I have been syringing it into his mouth as he won't drink willingly. On Wednesday night he fell asleep, and has been literally sound asleep since then. It has been 2 1/2 days now. I can wake him up and syringe water into his mouth, and he will drink it, but when I put him back in the dog carrier he has been staying in, he lays down and goes back to sleep. His symptoms seem to be improving a little. His eyes are still swollen, but his nose isn't runny anymore. He looks almost dead, but I can see him taking long deep breaths. He never moves. It is so strange. Almost like he is in a coma. I don't think he is suffering. But, he is very very thin, and I'm not sure he will ever wake up and be normal. Has anyone else ever experienced this? What do you think I should do? Should we put him down? Should I continue to give him water, or am I just prolonging the inevitable?