Cuass I, SKUA GULL. 
pacious bird seldom ventures near its quarters. 
The natives of Foula on this account levy a fine 
on any person who destroys one: they deny 
that it ever injures their flocks or poultry, but 
imagine it preys on the dung of the Arctic, and 
other larger gulls, which it persecutes till they 
mute for fear. 
Mr. Ray and Mr. Smith* suppose this to be 
the Cornish Gannet ; but in our account of that 
bird we shall shew that it is a different species. 
Mr. Macauly} mentions a gull that makes great 
havoke among the eggs and sea-fowl of Sf, 
Kilda ; it is there called Tuac : his description 
suits that of the Herring Gull; but we suspect 
he confounds these two kinds, and has trans- 
ferred the manners of this species to the latter. 
Linneéus involves two species in the article 
Larus Cataractes ; this, and the arctic bird of 
Mr. Edwards, birds of very different characters. 
* Hist. Kerry. + Hist. St. Kilda, p. 158, 
VOL, II. N 
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