BRITISH BIRDS. 



3-v. 



THE BLACK-THROATED DIVER. 



(Colymbus ArcticuS, Linn. Plongeon him me, ou a 



gorge noire, Temm.) 



THIS bird is somewhat larger than the Red- 

 throated Diver, from which it differs in plumage. 

 The bill is black, and measures about two inches 

 from the tip to the feathers at the base; the chin, 

 cheeks, and throat are of a sooty black; a few 

 narrow streaks of white cover the gullet; the fore 

 part of the head is dusky, tinged with ash, and 

 fades to a lighter colour as it is continued down the 

 hinder part of the neck, where it assumes a dirty 

 light ash; this is boundered its whole length on 

 each side by longitudinal spots, disposed in streaks 

 of black and white ; the front of the neck is black, 

 with a purple gloss, which, branching backwards, 

 falls down towards the hinder part, and joins the 



