I Got a Bird that Whistles, Got a Bird that Sings : A Sonnet

There is a bird in my chest,
with a song in her heart.

Oft she is a raven,
sometimes a lark.

She whistles from my rib cage all the day long,
Shaking my bones with her lofty song.

She chirps and chimes about freedom,
and a flight that is nigh

yet when I crack open my chest plate,
she refuses to fly.

She is perched abreast her percussion,
a beating bass line.

Though desperate to fly,
she won't leave her heart behind.