Baby Robin.

Oh my goodness. Jessica is wrong! Birds have no sense of smell. It's a myth that they won't take care of a baby bird after you've touched it. This is true for mammals like rabbits, but not for birds. (My good friend is a state-licensed animal rehabber. I'm not just pulling this info out of my butt.)

You did the right thing. The baby will probably be fine. If he falls out again, you can just sit him under a bush and the momma will find him and feed him. Maybe he's almost old enough to be out of the nest.

Yes, she will go back to the nest and the baby will be fine. Birds do not have a sense of smell. If you find a baby bird on the ground it's ok to leave it on the ground because the parents will continue to feed and care for it. Of course, it's in more danger from predators, but it would be OK. However, if you know which nest it came from, it is ok to put it back, too. They will not reject it because you touched it. Rest assured...

That's what I've heard about the scents and mom may not go back to him. Watch the nest and if she doesn't go back tomorrow you could always nurse him to independence or call a wildlife place to nurse him to the independent stage.

Lisa D and Jen C. made me feel better :) I didn't know birds had limited smell, something new every day.

http://www.snopes.com/critters/wild/babybird.asp

The bird should be fine, the mother will still care for it.

I could be wrong, but i dont think you are supposed to touch baby birds because you leave your scent on it and then mama is scared to go back... :-(

Did you wear gloves? Maybe if he doesn't smell like humans.....

Yes, the mother Robin will still care for him. It is just an old wives tale that mama birds will reject any baby that a human has handled. I was told this by a veterinarian.

Its a myth about touching a baby bird. You can put them back in the nest and the parents will still care for it. If the little guy had its wing feathers in it was most likely getting bold and fell or fledging. I had a baby in my yard and he could flutter fly. The mom was watching and complaining the whole time when I ran out to see if my dog had hurt it. Also once after a storm I had found two baby sparrows and couldn't get to the nest. I had them for several days, they had most of the feathers in. I had taken them outside to feed them and next thing I know both parents dived bombed me and encouraged them the flutter to a bush were they took care of them.
So you did the right thing and mama will still care for them. :-)

I just had 4 baby birds nest on my front door (in my wreath) earlier this summer. I held them (after their feathers started developing) and took pictures each day before they could fly. The Mother was nearby and she never abandoned them. I would not worry about just placing them back in their nest.