How to teach an older dove to eat?

[Tatyana]

My kids found a baby dove in our back yard ( i don't know exactly the kind,it's like a Ringneck,brownish-gray,with some white feathers on the wings,but not a ring on the neck).I don't know how old it was,but it couldn't fly and had many pin feathers.After about 2 weeks it started pecking on its own,but it kracked its front top beak,so I kept opening its beak and feeding it....Now the bird is probably 2-3 months old, can fly very well,but never eats alone.
Can someone tell me how to teach this bird to eat on it's own?

[plamenh]

Place the cage outside and spill seeds arround the cage to atract wild birds. By watching them peck, she will soon get the idea.