104 
which it associates while feeding on dead whales. 
It has also, we are informed, a strong and harsh 
voice. Except when engaged in breeding, it is 
occasionally met with on the open sea. Very 
few instances of its visiting Britain have been 
recorded. The first specimen described appears 
to have been a young bird shot in Balta Sound, 
Shetland, in December, 1822. Others have since 
been killed in the Frith of Clyde, and on the 
west coast of Ireland. 
GSU is TKS Tal WV CARE: 
TARROCK. 
Larus TRIDAcTYLus, Lath. 
The Kittiwakes arrive along our coasts the 
end of April, and generally disappear in October. 
They build their nests in vast numbers on high 
maritime cliffs, generally such as are frequented 
by Auks, Guillemots, and other sea-birds—breed- 
ing places which are much more numerous in 
Scotland than in England. The nests, which are 
generally placed on the lower parts of the cliffs, 
are bulky in shape, and are formed of grass and 
sea-weeds. They each contain two or three egos 
of a broad oval form, about two inches in length 
and an inch and a half in breadth. They are of 
a pale yellowish grey, greenish white, or light 
