I have a mixed flock of Bantams, all have been obtained over the past year from several sources. I noticed the head shaking thing over the summer in a few of the chickens. I'm seeing it now in a lot of them. The latest to get hit with it are my 3 silkies. I have had one in a cardboard box in my bedroom for over a week. He won't eat or drink. I give him water with a syringe to make sure he gets something. He won't eat crumble wet or dry, and he LOVES it wet, but won't touch it. He won't eat mealworms which are usually his favorite treat. I got him to take a few bites of scrambled egg, a couple bites of plain yogurt, and a few sunflower hearts a few different times but his crop is never full. He shakes his head violently from side to side, rubs his beak on the floor (back and forth and back and forth over and over), stretches his neck out and opens his beak as if he is yawning then smacks his beak like we would smack our lips, lastly, he takes one foot then the other and scratches his head very rapidly and violently. I noticed today that the feathers at his forehead look as if they are pulling away from his skull. I thought it could be worms, so I wormed him with Wazine. I read about gapeworms so I treated him with Ivomec 1% injectable orally. I started him on Poly Vi Sol today along with Vitamin E and Selenium. I also started him on Electrolyte water (water, salt, sugar mix per WebMD) today also. I brought his sister in yesterday cause she has sat in a nesting box for 2 days and hasn't gotten up. Same head shaking and some beak rubbing but not as bad as her brother. Gave her vitamin regime and electrolyte water, but didn't worm her. I noticed tonight that the other one still outside is doing the head shaking also but is still active in the run, so far, so I left her out in the coop. What in the world is happening to my chicken flock?? About 40% of the rest of the flock is head shaking but not rubbing their beaks or scratching their heads and they are still eating. None of them are doing the violent shaking like my Silkies are. I'm at a loss of what to do next or what.... My poor babies..... Can anyone help me out here? I'm desperately searching for a way to fix my flock. Short of putting all these chickens in boxes in my bedroom I'm up for whatever it takes.