The birds can fly, an' why can't I? Must we give in, says he with a grin, That the bluebird an' phoebe are smarter 'n we be?
John Townsend Trowbridge (1869). “Vagabonds: And Other Poems”, p.115

The birds can fly, an' why can't I? Must we give in, says he with a grin, That the bluebird an' phoebe are smarter 'n we be?