I know what caused the bluebird to cry: 'twas the deluge that necessitated the ark, and the fact he was forced to fly the entirety and couldn't seek refuge in the broken trees he once had as homes.
His love, one of two on the ark, the second- the winner, of a competition that he'd never thought existed.
He flies close to it to still have her near him and he hears her chirp with what seems like a smile, at the winner of a competition he'd never believed in, because he was taught to think that love wasn't a thing one could win or lose at. Yet there he was, trying to catch up in a race he'd already lost, because his mind was telling him to keep trying for something his heart knew was long gone.