BLACK-THROATED DIVER. 435 



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. Mummery, 

 of Margate, has just sent me notice that a beautiful speci- 

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

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

 been 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 

 Norfolk, which birds are now in the collection of Mr. Pen- 

 rice ; 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 Northumberland, 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 opportu- 

 nity 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. 



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 

 the species has been found during summer. This gentle- 

 man observes " that it dives with the same ease and as 



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