Birds of America
By John James Audubon, F. R. SS. L. & E.
GENUS II.--ANTHUS, Bechst. PIPIT.
Bill of moderate length, straight, very slender, as broad as high at the
base, compressed toward the end; upper mandible with the ridge narrow at the
base, the notches slight, the tip a little deflected; lower mandible with the
dorsal line straight, the edges involute, the tip acute. General form very
slender. Tarsus of moderate length, much compressed; toes slender; claws
arched, extremely compressed, acute, that of the hind toe much elongated.
Plumage soft and blended. Wings long; the outer three quills about equal and
longest; inner secondaries tapering, one of them nearly as long as the outer
primaries when the wing is closed. Tail rather long, emarginate.