Source : Webster's Revised Unabridged Dictionary (1913)

Lark \Lark\, n. [OE. larke, laverock, AS. l[=a]werce; akin to D.
   leeuwerik, LG. lewerke, OHG. l?rahha, G. lerche, Sw.
   l["a]rka, Dan. lerke, Icel. l[ae]virki.] (Zo["o]l.)
   Any one numerous species of singing birds of the genus
   {Alauda} and allied genera (family {Alaudid[ae]}). They
   mostly belong to Europe, Asia, and Northern Africa. In
   America they are represented by the shore larks, or horned by
   the shore larks, or horned larks, of the genus {Otocoris}.
   The true larks have holaspidean tarsi, very long hind claws,
   and usually, dull, sandy brown colors.

   Note: The European skylark, or lark of the poets ({Alauda
         arvensis}), is of a brown mottled color, and is noted
         for its clear and sweet song, uttered as it rises and
         descends almost perpendicularly in the air. It is
         considered a table delicacy, and immense numbers are
         killed for the markets. Other well-known European
         species are the crested, or tufted, lark ({Alauda
         cristata}), and the wood lark ({A. arborea}). The
         pipits, or titlarks, of the genus {Anthus} (family
         {Motacillid[ae]}) are often called larks. See {Pipit}.
         The American meadow larks, of the genus {Sturnella},
         are allied to the starlings. See {Meadow Lark}. The
         Australian bush lark is {Mirafra Horsfieldii}. See
         {Shore lark}.

   {Lark bunting} (Zo["o]l.), a fringilline bird ({Calamospiza
      melanocorys}) found on the plains of the Western United
      States.

   {Lark sparrow} (Zo["o]l.), a sparrow ({Chondestes
      grammacus}), found in the Mississippi Valley and the
      Western United States.

Skylark \Sky"lark`\, n. (Zo["o]l.)
   A lark that mounts and sings as it files, especially the
   common species ({Alauda arvensis}) found in Europe and in
   some parts of Asia, and celebrated for its melodious song; --
   called also {sky laverock}. See under {Lark}.

   Note: The Australian skylark ({Cincloramphus cantillans}) is
         a pipit which has the habit of ascending
         perpendicularly like a skylark, but it lacks the song
         of a true lark. The Missouri skylark is a pipit
         ({Anthus Spraguei}) of the Western United States,
         resembling the skylark in habit and song.

Source : WordNet®

Alauda arvensis
     n : brown-speckled European lark noted for singing while
         hovering at a great height [syn: {skylark}]