GUILLEMOTS, RAZORBILL, ETC. 135 
BRUNNICH’S GUILLEMOT. 
This Guillemot, the Uria bruennicht of Sabine 
and most modern writers, is a very rare visitor to 
the British Islands, its home being in the Arctic 
regions, from Greenland possibly to the Liakoff 
Islands, off the coasts of northern Siberia. It 
deserves a passing notice, for it is possible that it 
occurs in British waters more frequently than is 
generally supposed. It is a perceptibly stouter 
bird than the Common Guillemot, and has the 
base of the upper mandible pale gray. In its 
habits and economy it is not known to differ in 
any special manner from the better known species, 
of which it is the Arctic form. 
BLACK GUILLEMOT. 
This species, the Dovekey, or Greenland Dove, 
of northern mariners, the Tysty of the Shetlanders, 
and the Urza grylle of naturalists, is by far the 
most local of the Auks that are indigenous to the 
British Islands. During the breeding season it 
is only known to frequent one English locality, 
the Isle of Man; but in Scotland it is pretty 
generally distributed along the western and northern 
coasts, including St. Kilda, the Orkneys, and the 
Shetlands. Its chief resorts in Ireland are on 
the north and west coasts. The difference between 
the summer and winter plumage of this little bird 
is most extraordinary. In spring it assumes a 
