60 
HISTORY OF 
the end of it. In plumage the two birds much resemble each 
other, except the quills, which in the Iceland Gull are white, 
and in the Glaucus are half grey; the head is also grey. 
The bird figured by Bewick, under the name of Glaucus, or 
Iceland Gull, is the true Larus Glaucus of authors. The name 
of Iceland Gull is now transferred to its near ally, the bird 
we have been describing ; and in most works will be found 
described under the name of Larus Islandicus, Edmonston ; but 
the specific name of Leucopterus having been given to it by 
Faber, we of course retain it, having the priority. 
