Anyone know how to wean a pigeon

[Jello]

Hey everyone, I rescued a pigeon about a week a ago, and everyone on this site has been very helpful. Thank you. I would like to know if anyone has any advice on how to wean her, I work two jobs and am having trouble feeding her four times a day. I am feeding her corn and peas by putting them in the back of her mouth, she is picking at seeds, but her crop is always empty when I leave her to her own devices. Any suggestions whould be greatly apreciated.