BRITISH BIRDS. 1 79 
BLACK GUILLEMOT. 
GREENLAND DOVE, SEA-TURTLE, OR TYSTE. 
{^Colymlus Grylle, petit Guillemot nolr, BufF.) 
The length of the Black Guillemot is about 
fourteen inches, breadth twenty-two, and its weight 
fourteen ounces. The bill is black, Bender fliaped, 
and pointed ; the upper mandible flightly bent at 
the point : the infide of the mouth red. The whole 
plumage is fleek and glolfy, and of a footy-coloured 
black, excepting a large patch of white on the co- 
verts of each wing : its feathers appear all unweb- 
bed, and look like filky hair : the legs and feet are 
red : claws black. In fome of this fpecies the whole 
plumage is black, in others the leffer quills are tip- 
ped with white ; and all thofe that remain in the 
northern climates are faid to turn white in winter. 
Thefe birds are found in great numbers in the 
North Sea, in Greenland, Iceland, Spitzbergen, 
Z 2 
