At once a voice arose among
    The bleak twigs overhead
In a full-hearted evensong
    Of joy illimited;
An aged thrush, frail, gaunt, and small,
    In blast-beruffled plume,
Had chosen thus to fling his soul
    Upon the growing gloom.

So little cause for carolings
    Of such ecstatic sound
Was written on terrestrial things
    Afar or nigh around,
That I could think there trembled through
    His happy good-night air
Some blessed Hope, whereof he knew
    And I was unaware.

-From The Darkling Thrush -Thomas Hardy