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eagles; and smaller premiums are given 
for killing less destructive birds. 
Here are also seen grey linnets, larks, 
sparrows, robins, wrens, corn-craiks, and 
stone chatters. The tame fowl are, 
geese, ducks, pigeons, dunghill-fowl, and 
some turkeys. 
To the winding bays resort swans, 
dunter, clack, and soland geese; teal, 
Greenland doves, shearwaters, kittiweaks, 
(which are amazingly numerous), differ¬ 
ent kinds of gulls, cormorants, and other 
aquatic birds. 
In the Islands of Unst and Foula is 
bred a bird of the web-footed kind, called 
Skua, about two feet long, having its 
claws sharp, strong, and hooked like 
those of a kite. It preys on the lesser 
water fowl like a rapacious land bird, and 
is so remarkably courageous and fierce 
in defending its young, that it will even 
repel the eagle from its haunts. Some 
birds are driven here by the frost from 
