Tree swallow (Tachycineta bicolor) fledgling
I watched this cute little tree swallow fledgling for about thirty minutes. From time to time an adult would come by and feed him. When this happened became very animated and vocal. When the adults weren't there, he was mostly just sitting quietly, checking out the surroundings. Eventually a marsh wren chased him out of the tree. I watched him fly unsteadily about forty feet, where he landed safely, followed by both parents the whole time.