This is a test of commonsense. Complete the next sentence:

How to feed budgies
Try seeds.
One good option to feed budgies is seeds. However, you shouldn't let your budgie fill up on seeds, as this can shorten a bird's lifespan.
This is because most seed mixes do not provide sufficient nutrients your bird needs and can cause cancer, obesity, and other health problems. Seeds should only make up 1/6 of your budgie's diet.