My rooster is ill and I have no idea what is wrong. He is 1 year old. I noticed 2 days ago he stopped crowing and was not very active. Today even less active and tail is held down most of the time. I watched him for a while and noticed he will stand in one place for a long time and he keeps shaking his head over and over again... and ruffling his feathers around his neck. He is not coughing or retching... and his crop feels normal. He eyes are perfect, and I looked into his beak and down his throat and can see no swelling or anything stuck in there. He seems to be getting worse fast. He is a much loved pet and I don't want to loose him. I have only had him 3 months.. after our lovely last rooster had to be put to sleep as he somehow broke his hip. All the hens and chicks are doing great and show no signs of sickness. I am going to have to treat him at home.... vets in my areas are not interested in birds at all as I found out several times over the years. Thanks for any help.