Need help !

He's a baby. Make a cage or coop, then give him water and seeds. If he doesn't eat the seeds, buy some pigeon pellets, hand feed him, he will eat each one, until his crop fills he will stop when he likes. Then repeat when he cries for more food, show him how to drink, use your finger to make a beak touch the water in the water bowl. He likes the sound of water and drink some water from a cup, off him that cup. Good luck, you're a dad.