I have a Dark cornish and he hasn't eatin or drank (but what I have given him with and eye dropper) he hasn't moved in over 24 hours. he will lift his head a little bit. He hasn't been in a fight and the "new" birds we have have not been in the same coop..... He is in a dog pen. Advise given so far is Gatorade and scrambled egg, anything else? He is only 5 months old