ecotrition mynah bird food given as a staple diet with fresh/dried fruits and veggies, and cooked meats work pretty well. 7 years ago we ended up with an injured fledgling, tried re-releasing but the poor guy kept getting picked on, once by a dog, and then by the other crows, so we took him in. Our vet approves of his diet, and he's healthy after 7 years on it. He's not the most tame bird, as the initial goal wasn't to tame him, but to release him. he absolutely hates me, and thinks its fun to try to attack me anytime i get near his cage, be it to feed him or even if i'm just walking by. But he loves my mom, he likes when she pets him.
we had him DNA tested to find out that he is male, though its really not that important. he does go through something that i call "spring fever" each year. For a few months in the spring, he gets a little too "friendly" with his food bowl several times a day, and makes the most awful sounds. It took awhile to figure out what was going on, we thought he was hurt or something. Now I just ignore it, but my dog will start howling when he does it so its pretty annoying. I'm not sure if females would go through something similar in captivity, but its something to be aware of if you plan on keeping this one.