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information respecting this predaceous bird, for it would be out of 
place to enter into particulars here in what can only be regarded as 
a mere list of the species inhabiting Britain. I may mention, how- 
ever, that its specific name is derived from one of its breeding- 
places, to which may be added Lundy Island, Ailsa Craig, St. Kilda, 
Suliskerry in Orkney, &e. 
Family LARID A. 
Mr. Harting, in his ‘ Handbook of British Birds,’ has included the 
Gulls and Terns in the same family, with which view I acquiesce, 
for it would be difficult to draw the line between the termination of 
the one and the commencement of the other. Whether we regard 
the Gulls, Terns, and Skuas separately or collectively, they may be 
described as coast-wanderers over the entire globe, but more abun- 
dant in the northern than in the southern hemisphere. Their 
principal food is fish, crustaceans, and other marine animals, but 
some of them readily eat worms, insects, and garbage. In their 
plumage they are perhaps the most cleanly of all birds, always 
maintaining their pure and delicate tints unsullied. There are over 
one hundred species inhabiting various parts of the globe. 
Subfamily LARINAS. 
Genus Larus. 
The members of this genus comprise all the large Gulls—birds 
which, as scavengers}alone, play an important part in keeping a 
wholesome atmosphere. They also prey upon fish, crustaceans, 
small mammals, and weakly birds. 
373. LARUS MARINUS Ala -ceanc—smind) tree hau dace a5 Leek Val ba abel DAYS 
Great Buack-BACKED GULL. 
A resident species, breeding round our coasts. 
374. Larus FUSCUS Fa Ne ee en AT Col CERO od oe UN Ba 
Lesser Buack-BACKED GULL. 
Also a resident and breeding species. 
SLAB US GLAUCUS Mijislienocuiiiy ceive) s Volk Vo PL VE. 
Guaucous GULL. 
A bird of the northern hemisphere generally, whence it is driven 
southward on the approach of winter, at which season it arrives 
here, as well as in similar latitudes in America. 
K 
