Do you have liquid Corid? If so, you could give him some orally - .2ml per kg (2.2 pounds). Clicking when when they breath often means respiratory. If he were mine I would bring him inside and tube fluids to correct his hydration status as he is probably dehydrated. FYI, I'm available by phone to teach people how to tube. With the right equipment, it is sooooooooo much safer, easier and less stressful than syringe feeding.So I've got an AM bantam cockerel who isn't doing so well. He's fluffed up, thin, very lethargic, eyes closed, clicking when he breathes, and not eating or drinking unless forced. I'm thinking either worms, or cocci. I've given him a small amount of dewormer, as too much in a weak state could kill them. Anything else?
I'm so bummed right now because tomorrow was my deworming day.
https://www.backyardchickens.com/t/805728/go-team-tube-feeding
-Kathy