[header] How to wean a wild baby bird [title] Start leaving small dishes of food and water for the bird. [step] 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.