Have a Barred Rock hen. About 10 days ago, she developed a cough with occasional trace blood in the expectorate. Lungs had wheezing to auscultation. Some open mouth breathing. Isolated her in the house in a dog kennel. Have had her on tetracycline since day 2. She is eating okay, I hand medicate her with a syringe dripping the abx on her bill which she then swallows. ( she likes to cuddle, likes her neck scratched and sleeps on my chest) Feeding her all kinds of fresh greens, some fruits, as well as scratching grains. She dropped her first egg since the start of illness this morning. Here is my concern. The wheezing in her lungs are gone, but she still has the gurgle in the trachea. I have visually inspected and swabbed the throat and see no signs of Gape worms. She will occasionally do the open mouth breathing. She has a croupy sounding cough, but with some percussive therapy she will cough and swallow making me think it can move and she has considerably less gurgle right after. I am at a loss. She hates being cooped up, so I have resorted to tying a string to her leg and taking her walks in the garden. I am afraid to put her back in with the others when she still has this cough.