There was once a robot with a broken heart good for nothing but expiring slowly on a scrap heap Then one winter's day a migrating bluebird lands on his shoulder too exhausted to go further The robot offers her shelter in the place where his heart used to be & her warmth & singing & companionship stir up the last glimmer of energy the robot has; he carries her across snowy wastes to the warm south whereupon his strength dies out finally & there he still stands today like an old hollow tree home every year to singing birds