Your vet Glendale, AZ can tell you that fatty liver disease or Hepatic Lipidosis disease can occur in various species of birds including Bourke parakeets, Cockatoos, Quaker parrots, lovebirds, cockatiels, budgies, and Amazon parrots. Your vet will most likely explain that fatty liver disease is a serious disease that occurs when large amounts of fat are deposited in the liver. If you suspect your Bourke is suffering from fatty liver disease, contact your vet right away. Symptoms of fatty liver disease may include a sudden loss of appetite, lethargy, and depression. Some birds may exhibit additional symptoms or no symptoms at all. Death can occur suddenly. If you notice your Bourke is acting oddly, call your vet right away. Abnormal behavior can have a variety of causes and it’s always best to have your vet look into it just in case there is an underlying disease or condition.