I went to feed my flock this morning to find my Stardard Old English Rooster alone in a corner. He is real letahrgic, did not react when I went to grab him. he usually jumps up or runs away. I can hear everytime he take a breath almost like mucus in his nostrils. His tail and wings are drpoped lower than usual. He also feels hot. None of the other hens seem to be sick they are outside scratching and carrying on like usual. I placed the rooster in a large dog kennel but is not eating or drinking. If anyone can help, it would be appreciated, thank you.