What most naturally follows?

How to wean a wild baby bird
Start leaving small dishes of food and water for the bird.
You should begin doing this once it is fully feathered (a fledgling). You can leave seeds, insects (dead mealworms and crickets work well), and fruits (cherries, grapes, plums, etc.
, which can be cut up into smaller pieces). Eventually the bird will begin pecking at the food out of curiosity.