Although the existence of this species was known to the celebrated
explorers of the west, LEWIS and CLARK, during their memorable journey
across the Rocky Mountains and to the Pacific; no one has since taken
the least notice of it.
These travellers mention it at page 236 of the first volume, edited
by PAUL ALLEN, Esq., and revised by ARCHIBALD M'VICAR. They say, on
the 21st June, 1805, "There is also a species of Lark, much
resembling the bird called the Old Field Lark, with a yellow breast
and a black spot on the croup. * * * * The beak, too, is somewhat
larger and more curved, and the notes differ considerably." The
expedition was, at the period mentioned, in the neighbourhood of the
great Falls of the Missouri.