I breathed a song into the air, It fell to earth, I knew not where; For who has sight so keen and strong, That it can follow the flight of song-- The song from beginning to end, I found again in the heart of a friend.
For some birds, songs are learned by listening to their parents and neighbors during
the first year. For other birds, songs are hardwired -- the music is scored in their
brains from the beginning. For mockingbirds, singing is a lifetime of choir practice
and talent shows, picking up new tunes and modifying old ones.
