406 



BIRDS OF THE BRITISH ISLES. 



IRcMbroatcb Diver, 



THE Red-throated Diver (Colymbus septentrionalis, Linnaeus) 

 is a resident in the British Isles, and also inhabits the 

 Northern Palearctic Region, as well as the Nearctic 

 Region. The adult in nuptial plumage has the forehead, 

 sides of head, and neck, grey ; crown, nape, and back of 

 neck, streaked longitudinally with white and black ; centre 

 portion of throat, rusty red; back, scapulars, lesser and 

 greater wing-coverts, dusky-brown, marked more or less 

 on the back with white spots ; quills, brownish ; under 

 parts, glossy white ; irides, brown ; bill, black ; legs, black ; 

 centre of webs, tinged with yellowish. Length, from 



