A few days ago there was a thunderstorm where I live and that evening my friend’s mom saw a tiny bird near the gutter, barely moving. She took it home and it has been in a small bird cage lined with paper towels in a small bed made of fluff, fleece, and strips of paper towels. It does NOT have all of its’s feathers, the chest is completely bald and there is a large bulge where I am assuming it’s heart is. It’s neck has no feathers and it’s eyes barely open, I think it is very young. We tried to look everywhere for the nest and found a next FAR up in the shingles of someone’s house, where we cannot possibly reach. I do not know if this is the right nest or not, since the baby bird was found in the street gutter. We have been feeding it corn meal much (seeds and cornmeal diluted with water and mixed to, essentially mush, and tomorrow I think I will take it to the vet and see what I can do to help it until it is old enough to fly away. I do NOT intend to keep it, as I know that would be illegal. I only want to nurse it to health and an age where it can fly, as now it can definitely not fly. Should I crush up a worm? How can I get it to drink water (other than by in the mush)? What should I include in it’s bed? How long until it can fly or even stand up correctly? It is currently so small it cannot perch on a finger, it will simply topple over. It chirps when it is hungry, and has seemed to stabilize from the stress of the storm, but I cannot reach the nest and live in a very urban area, with an animal rescue facility park probably hours away. Any advice to keep the bird for a week until it can fly and rejoin it’s parents?
It looks somewhat like this, but with less feathers and much smaller.

http://www.photosaga.com/Macros/images/Baby-Bird.jpg

The feathers on the head also seem like they are still wet from the egg fluids.