My normally agile and funky pet rooster went very quiet and slow a few days ago and stopped eating and drinking, so on Saturday I decided to separate him from the flock and place him in a quiet, warm place (temperature outside drops to near freezing points at dawn these days). I examined him thoroughly but other than a very pale comb and wattles I found nothing. Still, he refuses to drink or eat anything, consequently his condition is worse and worse with every day. Sunday he would eat a little (very little) on his own and yesterday I could make him eat a few grapes and sunflowers but today he basically hasn't eaten anything and doesn't even want to stand up any more (looks like he's too week to stand any more). He's not sneezing or coughing, no discharge from any orifice, poop normal albeit very little, no worm in poop or throat, no mites or parasites around vent or on feathers, no impacted crop as far as i can judge. No heavy breathing, no gaping beak, no nothing. I consulted a vet who advised trying Baytril, which I did give him On Saturday and Sunday but today I could not make him swallow it. Now I'm trying to give him drops of glucose and Gatorade but I may be doing something wrong cause it too often ends in his lungs and he needs to cough it up and I'm afraid he's going to choke. I've been keeping chickens for years and lost a few but every time there was some clear sign of the specific illness. Right now, however, I feel that he's basically dying in front of my eyes when he really should not be and I can't do anything to make him eat a little to have the strength to fight off this disease whatever it is.