Take it to a wildlife centre as soon as you can. You should never try and feed a wild bird. Some things are not good for them to eat. Just keep it in a shoe box with a towel with some holes punched into it. Get it help asap. Hope the little guy is gonna be okay :)
Soak a small piece of white bread in water sprinkle a little dirt on it then feed it to him or her. The dirt will help the food digest and the water soaked bread will give the bird a drink. Also if you could feed it some earthworms that would also be great.
take it to a vet or human society. It may have a broken wing or limb you can't see. If you feed it you need to use a dropper. You really need to take this bird to someone before you leave so they can professionally help it.
Take it to a vet or animal shelter.
hey so I found a bird on the ground about 2 days ago and it couldn't move and I tried giving it bird seeds and it wouldn't eat so I brought it home so that the bugs wouldn't eat it alive and I feel like that wasn't a good thing to do but I felt really bad for it I really did. He/She is really nice, it doesn't try to bite and me and my sister have tried to help it fly but it can only do it for maybe a few feet and then it falls and it can't take off without our help. I'm on vacation right now in Kansas Coty so in 4 days I have to let it go because my airline doesn't allow pets. is there anything I can do to help it fly or will it learn by itself? Also how do I feed it? I have tried to feed it birdseeds and whole wheat bread. I try to get him to drink milk or water but its hard because he doesn't voluntarily open his beak, I have to grab him and he squaks and I near pluckers with some bread/seeds and put them in his beak and he swallows it but its hard to feed him when he refuses to squak. I really need help, I dont want him to suffer