186 



red ; plumage above grey, spotted with white, be- 

 neath silvery white ; the legs are dark. 



Weight 3lbs. length 2 feet; breadth 3 feet 5 

 inches. 



The female forms a nest of moss and herbage 

 lined with down, and deposits 2 dingy bluish white 

 eggs, spotted with dusky. 



5. ARCTICUS. BLACK THROATED DIVER. 



C. capite cano, collo subtus atro-violaceo, fascia alba 

 interrupta. Lath. 



The head, throat, and front of the neck are black, 

 changing to glossy purple and green ; the hinder part 

 of the head and neck are ash colour; the upper 

 parts are black spotted with white ; the under parts 

 are white ; the tail is black ; the legs dark reddish 

 inside. 



GENUS LIV. 



STERNA. 



Bill strong, slender, pointed, nostrils narrow on 

 the base of the bill ; tail forked ; feet webbed. 



(MIGRATE.) 



