Because the song of the sky-lark is very sweet, full of harmony, extremely cheerful, and known and admired by all; but the voice of the wood-lark is local, not so generally heard, from its softness must almost be listened for to be distinguished, and has not any pretensions to the hilarity of the former.
The ill-fated Shelley has some exquisite lines to a sky-lark: Hail to thee, blithe spirit;
Bird thou never wert, That from heaven or near it, Pourest thy full heart In profuse strains of unpremeditated art. Higher still and higher from the cloud thou springest, Like a cloud of fire; The deep blue thou wingest, And singing still dost soar and soaring ever singest.
Teach me half the gladness
That thy brain must know, Such harmonious madness From my lips would flow, The world should listen then, as I amlistening now.*
* see the " Beauties of Shelley," 18mo. 1830.