I have had a sick chicken for over a week. I culled her in the house in a tub she could easily climb out of but never tried. I did all the stuff. Vinegar, olive oil up the vent and down the mouth. Epsom salt bath with massage afterward. She has only deteriorated. Today with the temps up into the 40's and sunny I put her on the deck and she was immediately attacked by her coop mates. I made the decision to euthanize her. I then did necropsy The first picture is what I saw when I first opened her and sliced down through the middle. The second picture is the mass taken out .