200 
4. SAND- 
WICH. 
Descrip= 
TION. 
SANDWICH TERN. Crass IL. 
this a cloven-footed gull, as the webs are de- 
pressed in the middle, and form a crescent. 
These birds frequent fresh waters, breed on 
their banks, and lay three small eggs of a deep 
olive. golor, much spotted with black. They 
are found during spring and summer in vast 
numbers in the fens of Lincolnshire ; make an 
incessant noise, and feed as well on flies as 
water insects and small fish. 
Birds of this species are seen very remote 
from land. Kalm saw flocks of hundreds in 
the Atlantic ocean, midway between England 
-and America, and a later voyager assured me 
he saw one 240 leagues from the Lizard, in 
the same ocean. 
Sterna Boysii. St. alba, dorso bo. Lath. Ind. orn. 806. id. 
alisque canis, pileo nigro, Syn. vie 358. id. Sup. i. 266. 
fronte maculis albis remigi- Sterna cantraca. Gm. Lin. 606. 
bus nigricantibus, scapo al- Boys. Sandwich. tab. 
[THIS is the largest of the British Terns; 
its length being about eighteen inches. . The 
bill is black, with the tip horn color; the irides 
hazel; the forehead, crown, hind part of the 
head, and sides above the eye, black; the rest 
of the head, neck, and under parts of the body 
and tail, white; the back and wings pale hoary 
