438 COLYMBIRE. 



OF the three species of the genus Colymbus, known in 

 this country, the Black-throated Diver is the most rare, 

 occurring but seldom on the southern shores. Young birds 

 have been taken in winter in Cornwall and Devonshire. 

 In the London market young birds are occasionally to be 

 met with, and during the winter of 1836, Mr. Bartlett 

 purchased two, one of which was an adult bird with a fine 

 black throat ; this specimen was obtained in the month of 

 January; the other was a young bird. Mr. S. Mum- 

 mery, of Margate, sent me notice that a beautiful speci- 

 men was captured on the 2nd of June, 1842, in Sand- 

 wich Haven, and this, being a very fine male bird, was 

 preserved, and deposited in the museum at Margate. I 

 learn from the Rev. Richard Lubbock that in the year 

 1832, a fine pair were killed on one of the broads of Nor- 

 folk, which birds are now in the collection of Mr. Penrice ; 

 but that in Norfolk most of the examples of this species 

 have been obtained in winter, and these were young birds. 

 Mr. Willoughby has procured this species near Spilsby 

 in Lincolnshire. On the shores of Durham and Northum- 

 berland, Mr. Selby considers the Black-throated Diver a 

 rare winter visitant. In 1830, a fine mature specimen 

 was killed at the mouth of the Tweed, and several young 

 birds on different parts of the coast, and upon the river 

 Tyne. Mr. Selby having had an opportunity of examining 

 the bird from which Thomas Bewick engraved the figure 

 of his Lesser Imber, has no doubt that it is the young of 

 the year of this species. 



Examples of this bird have been obtained recently 

 in the counties of Sussex, Cambridgeshire, Suffolk, and 

 Northumberland. 



In its habits the Black-throated Diver closely resembles 

 the Northern Diver, last described; and we learn also 

 from Mr. Selby some of the localities in Scotland in which 



