HELP! My rooster is clearly not well. Went out to give them some turnips and noticed him in the corner. He is standing up but his eyes are closed and he has some mucus type gunk all over his beak. He has been a little lathargic last few days. I touch him and he puts his head up but wont open eyes, then his head lazes back down. I've only had chickens for about 2 1/2 months so have NO idea what I'm doing.