It's probably okay, it can walk and fly.
I tried giving it some bread but it wasn't paying any attention to it. I shoved it closer, which scared the poor guy and it flew on a first floor windowsill across the street. That's probably for the best, it could easily fall victim to a dog otherwise. I threw the bread up there but it seemed tired from the flight and sat in the shade. Most of the bread was gone the next day, and so was the pigeon.
I was really surprised by how long the young ones' beaks are, I first thought it could be a corvid.
