[1] : The Collaborative International Dictionary of English v.0.48

meadowlark \meadowlark\, meadow lark \meadow lark\n. zool.,
   any species of sturnella, a genus of north american
   songbirds allied to the starlings. the common species
   sturnella magna has a yellow breast with a black
   crescent.

   syn: lark.
        1913 webster + wordnet 1.5 meadowsweet
see also:
sturnella sturnella magna 

[2] : WordNet (r) 2.0

sturnella magna
     n : a meadowlark of eastern north america syn: eastern
         meadowlark
see also:
eastern meadowlark 

Magna >> M Words
Magna, definition of term: Magna
magna_pag1.html

Sturnella >> S Words
Sturnella, definition of term: Sturnella
sturnella_pag1.html

Magna Carta >> M Words
Magna Carta, definition of term: Magna Carta
magna+carta_pag1.html

Magna Charta >> M Words
Magna Charta, definition of term: Magna Charta
magna+charta_pag1.html