Source : Webster's Revised Unabridged Dictionary (1913)

Maa \Maa\, n. [See {New} a gull.] (Zo["o]l.)
   The common European gull ({Larus canus}); -- called also
   {mar}. See {New}, a gull.

Mew \Mew\, n. [AS. m?w, akin to D. meeuw, G. m["o]we, OHG. m?h,
   Icel. m[=a]r.] (Zo["o]l.)
   A gull, esp. the common British species ({Larus canus});
   called also {sea mew}, {maa}, {mar}, {mow}, and {cobb}.

Gull \Gull\, n. [Of Celtic origin; cf. Corn. gullan, W. gwylan.]
   (Zo["o]l.)
   One of many species of long-winged sea birds of the genus
   {Larus} and allied genera.

   Note: Among the best known American species are the herring
         gull ({Larus argentatus}), the great black-backed gull
         ({L. murinus}) the laughing gull ({L. atricilla}), and
         Bonaparte's gull ({L. Philadelphia}). The common
         European gull is {Larus canus}.

   {Gull teaser} (Zo["o]l.), the jager; -- also applied to
      certain species of terns.

Source : WordNet®

Larus canus
     n : the common gull of Eurasia and northeastern North America
         [syn: {mew}, {mew gull}, {sea mew}]