182 BIRDS OF THE HUMBER DISTRICT. 



The Great Northern Diver arrives off our coasts 

 very early in the autumn, sometimes by the middle 

 of August, leaving again late in the spring. They 

 nest in Iceland and in the extreme north, but, accor- 

 ding to Mr. Wheelwright*, never breed in Scandi- 

 navia, where they are only known as occasional win- 

 ter visitants. 



Mr. Boulton had a fine mature female, shot on 

 Hornsea Mere. 



237. COLYMBUS ARCTICUS, Linnaeus. Black- 

 throated Diver. 



Provincial. Herring-Loon. 



Occurs in the same situations and seasons as the 

 preceding, but not nearly as numerously. Is not 

 uncommon off the Flamborough coast in severe win- 

 ters. 



Mr. Boulton had an old male, shot inland on the 

 river Hull, also an immature specimen from the same 

 locality. 



Captain Seddon has a very fine adult female in his 

 collection, taken on the Humber on February the 

 16th, 1870. The black gular patch was then partly 

 acquired. 



Unlike the preceding, the Black-throated Diver 

 breeds all over Scandinavia, from the south of Scania 

 to far up within the Arctic Circle. 



This, as well as the other Divers, is sometimes 

 * Ten years in Sweden, p. 432. 



