One of my roosters was clearly on it's way out, about 7 months old. So I decided to process it. Whilst cleaning it out, I noticed that the gall bladder was much bigger than it should be, and also the liver was much bigger. I'm sure there's probably more than one disease that can cause the gall bladder to swell up or increase in size, but does anyone know what they are? Can't seem to find anything substantial online. Any ideas anyone?