Puffed up, not drinking, didn't fight me at all when I picked her up. She's inside, on a heating pad now. Other steps to take? Two weeks ago I had a wyandotte that is a year old die out of the blue. I put the other chickens on oxytetracyline antibiotic when I found only very dark lungs in the necroposy. Chickens were done with antibiotics a week ago.