After living in the same home for 15 years, his owner moved overseas and couldn't take him along. Pauly lived in a cockatiel-sized cage and was fed only seed.
As we do with all our larger birds, we had him to the vet for a wellness exam and bloodwork. His liver enzymes and bile acids were the highest we've ever seen in a bird. These results were caused by the poor diet he was on in the past. Our vet also did x-rays and, finally, a liver biopsy. When she called after the biopsy, she reported that the liver was orange and crumbly (it should be smooth and purplish). The pathology came back with a diagnosis of fatty liver disease and cirrhosis of the liver.
This diagnosis means that Pauly's time with us is now very limited. His poor diet has virtually turned his liver into fat and what is left is in bad shape. One day his liver will cease to function and he will literally fall off his perch dead.
We have a wonderful volunteer who is willing to take Pauly into her home for the last days/weeks/months of his life. Pauly, by all rights, should be living to be 50-60 years old. He is probably now in his early 20s. It's just a shame that a person can have a pet for so many years and never take the time to learn how to properly care for it. We will never understand that logic (or lack thereof).