Many thanks to Jane for pointing out the appearance of the talented Pepper the Parrot on yesterday's Puppy Bowl V on Animal Planet! The only embeddable video I can find is this bit with the referee choking up over Pepper's beautiful performance; it's a bit of a goof but at least you can go to Animal Planet's website and see the entire anthem performance here.
What is it about a bird singing that is so terrifically moving? Perhaps the sweetness, the pure love of singing the song makes it so touching. Totally charming!