Why do some Budgies die Earlier?
Many budgies which die before age 5 are poorly fed and die of malnutrition. There is also a window of time where a budgie might develop a tumor. If a parakeet starts acting poorly around age 5-7 it is probably a tumor. Take your bird to a vet if you notice its breastbone sticking out or that the bird has trouble sitting on its perch. If your bird makes it through this period it will probably live a long life and die of old age.