270 THE BIRDS OF THE BRITISH ISLES. 



The first plumage of the juvenile resembles that of the adult 

 in summer, but in autumn one more like the winter dress is 

 attained, but the sides of the face and neck are mottled with 

 brown. The bill is blackish horn, the legs and feet blackish 

 brown, and the irides brown. Length, i8'5 ins. Wing, 775 ins. 

 Tarsus, 1*25 ins. 



Briinnich's Guillemot. Uria lomvia (Linn.). 



Briinnich's Guillemot is an Arctic bird, which nests as far 

 south as Iceland, and occasionally wanders in winter to our 

 shores. Four were obtained in the winter of 1894-95, three 

 of these in Yorkshire and the other in Cambridge ; others have 

 been taken since and probably some before, but the evidence is 

 not always conclusive ; at any rate the majority have been met 

 with on the east coast in England or Scotland. The bird has 

 been reported in June at Bempton and the Fames, but was only 

 identified through glasses. It is a blacker bird than ours, and 

 the bill stouter and deeper ; the mature bird has a pale 

 unfeathered hne from the nostril to the gape ; the legs are 

 brownish. Length, 18 ins. Wing, 8'5 ins. Tarsus, i'3 ins. 



Black Guillemot. Uria grylle (Linn.). 



In so many ways the Black Guillemot (Plate 119) differs 

 from other auks that it is placed by some systematists in 

 a separate genus ; it has a very distinct seasonal change of 

 plumage, lays more than a single ^g^^ and is much less gregarious. 

 It is found, seldom in large numbers, throughout north-eastern 

 America, Greenland, Iceland, and western Europe to the White 

 Sea ; in the British Isles it is local in Scotland and the western 

 islands, more plentiful in the Orkneys and Shetlands, scattered 

 over the north and west of Ireland, and the Isle of Man. It 

 formerlv nested in one or two localities in North Wales and on 



