The Holy Spirit is our harpist, and all strings which are touched by Love must sound.
~ Mechtild of Magdeburg
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.