Sorry I should of put this on pet rescue but I was afraid no one would see it for a while.

I was with my friend Marianne (SAINT.PHILOMENMA) and we hear her little 4 year old brother scream. We went over and he was standing over a baby bird that was scooting around. It only has a little bit of hair on it's back. It must only be 2-4 weeks old. We can see it's nest with it's siblings in it but it is too hard to get up there to put it back in. What should I do?

HHHHHEEEEEEELLLLLLLLLPPPPPPPP!!!!!!