What do you feed a baby finch who fell out of the nest in an early age?

Did you already touch the finch? Usually it is not a good idea to touch the finch because the mother of the baby will not return if it smells human scent on their baby. If you haven't touched it yet, I would wait a few hours and see if the mother returns to take care of her baby...If not, it would be wise to pick up some specially made bird food from a local food store instead of feeding it human food.