Saved a baby bunny from crows. Now what?

What it says, I saw the momma chasing a crow that was carrying a baby bunny, then they reached a stalemate so I thought I’d help the momma and she ran off. Now I have a baby bunny in a box with padded materials and no idea what to do next. I probably shouldn’t have intervened but here we are, I am honor bound to see this thru

Edit: Found the momma and out the baby under a big brush pile nearby. Gave the crow the taquito I was eating. All this stuff about let nature take its course? We’re in urban Seattle – we’re way past that point when the local crows are living off discarded fast food bags in the gutter.