Know anything about baby birdies? [View All]

I've been watching some nestlings in my front yard. This morning, the two baby birdies were flapping their wings, looking like they may attempt to fly.

A few hours later, my husband was frantically telling me that one of the babies got a foot caught in the nest, and the momma bird was dive-bombing him. He handed me a small box with some packing material, and a pair of scissors. I went out and saw the poor baby dangling. I snipped the string and gently placed the box sideways on the ground. The baby started walking around, chirping and flapping his wings.

Now he's on my front porch looking at his reflection. I assume this is the same baby that I rescued earlier.

My question is this: Is there anything more I should do with this baby? I've never observed birds before, so I don't know how to tell if they are truly in distress. The nest is now empty, so I'm assuming the other baby is flying.