What most naturally follows?

How to feed a red bellied parrot
Choose a formulated bird feed.
Red bellied parrots need a diet made specifically for small and medium-sized birds. A formulated diet provides extra vitamins and minerals that your bird would get naturally in the wild.
You can purchase either a pellet or seed-based formulated diet for your bird at a local pet store. While a bird feed is vital to your pet's health, bird feed alone is not adequate to keep a red-bellied parrot healthy.