The Collaborative International Dictionary of English v.0.48:

Maa \Maa\, n. [See New a gull.] (Zool.)
   The common European gull (Larus canus); -- called also
   mar. See New, a gull.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mew \Mew\, n. [AS. m?w, akin to D. meeuw, G. m["o]we, OHG. m?h,
   Icel. m[=a]r.] (Zool.)
   A gull, esp. the common British species (Larus canus);
   called also sea mew, maa, mar, mow, and cobb.
   [1913 Webster]