40-day-old peony parrots are usually still in the juvenile stage, and their diet requires special attention. Here are some foods suitable for 40-day peony parrots:

Special milk powder for parrots: you can buy specially designed milk powder for parrot chicks of milk powder, brew and feed according to the instructions on the package.

Millet: Cook millet before feeding, but make sure it is soft and easy to digest.

Vegetables and fruits: You can provide peony parrots with some chopped vegetables and fruits, such as carrots, pumpkins, apples, etc., to supplement vitamins and fiber.

Protein sources: You can provide some protein-rich foods in moderation, such as hard-boiled eggs, chicken or bugs.