The Divers 



The Red-throated Diver. The White-billed Diver. The Gre.\t Northern Diver. 



downwards towards the tip, and there is scarce!}- any indication of an angle on the 

 lower mandible, whereas in C. adaiiisi the angle of the genys is strongly marked. 

 In the latter bird the colour of the throat and upper fore-neck is purplish instead of 

 greenish-blue, and the white edgings to the feathers on the band which crosses the 

 throat are broader and longer. In winter plumage the two species are alike, 

 but the colour of the bill distinguishes them at this season of the year. 



The White-billed Diver has occurred several times on our coasts, and is perhaps 

 more common in winter than has been supposed. Its home is in the Arctic Regions 

 of Europe and Siberia as well as North-west America. In habits it does not differ 

 I'rom C. glacialis, and the nest and eggs are similar. 



This is a smaller bird than either of the foregoing, and has 

 the head and neck of a dove-grey colour; the fore-neck is purplish- 

 black, with rows of white-striped feathers on either side of the 

 neck. In winter it may be told by its smaller size, the wing 

 being iVom eleven-and-a-half to thirteen inches in length ; 

 the upper surface of the body is dark ashy-brown and the wing-coverts are more or 

 less spotted with white. The Black-throated Diver is found nesting in the North 

 of Scotland, and occurs in winter on our c(/asts. It nests in Northern Hurope and 

 Asia .13 well as in North America, migrating southwards in winter, when it is lound 



THE BLACK- 

 THROATED 

 DIVER. 

 {Culyinbits arcticiis.) 



