Source : Webster's Revised Unabridged Dictionary (1913)

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.

Herring \Her"ring\, n. [OE. hering, AS. h[ae]ring; akin to D.
   haring, G. h["a]ring, hering, OHG. haring, hering, and prob.
   to AS. here army, and so called because they commonly move in
   large numbers. Cf. {Harry}.] (Zo["o]l.)
   One of various species of fishes of the genus {Clupea}, and
   allied genera, esp. the common round or English herring ({C.
   harengus}) of the North Atlantic. Herrings move in vast
   schools, coming in spring to the shores of Europe and
   America, where they are salted and smoked in great
   quantities.

   {Herring gull} (Zo["o]l.), a large gull which feeds in part
      upon herrings; esp., {Larus argentatus} in America, and
      {L. cachinnans} in England. See {Gull}.

   {Herring hog} (Zo["o]l.), the common porpoise.

   {King of the herrings}. (Zo["o]l.)
   (a) The chim[ae]ra ({C. monstrosa}) which follows the schools
       of herring. See {Chim[ae]ra}.
   (b) The opah.

Source : WordNet®

Larus argentatus
     n : large gull of the northern hemisphere [syn: {herring gull}]