I have a Baby Meadowlark?

Okay i found a baby meadowlark in the middle of my arena & decided to put it back over in the bushes where i thought it came from, so it's mother could find it. While riding i heard it crying & found that the cat had gotten it & was chasing it. So i caught it (and screamed at the cat) and miraculously it's unhurt. However, the mother was caught by the cat, (as i found out when i was chasing the little thing around and found her) and now i'm here with a baby bird. We looked it up on the internet and decided it was a baby eastern meadowlark, and absolutely adorable. I fed him 8 crickets dipped them in water so he would get both water and food. He quieted down for a moment, but now he's chirping away again. Of course i don't mind the little thing, or taking care of her (as we believe since she is so brown) but i was wondering if there was some bird expert out there who knew about how much she should eat a day? and if her cricket/worm/anything else i can catch diet is good for her? Thanks so much if you can!