Captivity

Caged in old woods, whose reverend echoes wake
When the hern screams along the distant lake
Her little heart oft flutters to be free
Oft sighs to turn the unrelenting key
In vain the nurse that rusted relic wears
Nor moved by gold — nor to be moved by tears;
And terraced walls their black reflection throw
On the green-mantled moat that sleeps below
(Samuel Rogers)