The bat is dun with wrinkled wings

The bat is dun with wrinkled wings
Like fallow article,
And not a song pervades his lips,
Or none perceptible.

His small umbrella, quaintly halved,
Describing in the air
An arc alike inscrutable, --
Elate philosopher!

Deputed from what firmament
Of what astute abode,
Empowered with what malevolence
Auspiciously withheld.

To his adroit Creator
Ascribe no less the praise;
Beneficent, believe me,
His eccentricities.