Almost definitely a crop infection! Get the chicken to the vet if you can! Search it up online for treatment, I don't know how to treat it I just know the symptoms and that it is almost definitely a crop infection!
Thanks everyone. Just thinking about how she used to jump on the windowsill and tap at the window for food. They all have their little personalities,don't they!
Bogtown Chick, I am so sorry for what you are going through, she seems like an absolute angel, I've grown attached to her just by...
I lost a chicken due to egg peritonitis, her name was Rocky, she was a Black Rock, and only 3 years old :( I miss her. Unfortunately we caught it too late and she only survived two days after the trip to the vet :(