288 BIRDS. 



the water on calm days, but I think it never dives unless 

 it first gets up plenty of way on the wing. Then it will 

 go right through the waves and come up a little way 

 off Its food consists, however, for the most part of 

 squid and other creatures that it can get without diving. 

 Egg, 2% inches ; white. 



Dusky Shearwater, An Atlantic bird, which has 

 occurred twice only. 



Sooty Shearwater. An irregular visitor in the cold 

 months, formerly confused with the young of the next. 



The Great Shearwater is a scarce visitor on migration, 

 Great chiefly in autumn. Its food consists of squid 



Shearwater, and cuttle. The fishermen use it for bait. 



CHAPTER XVII. THE GUILLEMOTS, DIVERS, 

 AND GREBES. 



[The three groups of which the order is composed differ 

 widely, for the first have stout short bills for the most part ; 

 the divers are all marked by curious bands on the throat ; 

 and the tailless grebes have singular palmated feet, recall- 

 ing those of the coot. In all, the underparts are white. 

 They all dive, however, for their food, but in their nesting 

 habits they bear little resemblance, one group construct- 

 ing large floating nests, another making no nest whatever. 

 There are, in all, eight residents, five regular visitors and 

 one irregular visitor.] 



The Razorbill is a common bird on our coasts all the year 

 round, breeding in most of our cliffs. Down near Lul- 



worth Cove there are inaccessible ledges cov- 

 Kazorbill. , . , . ' 



ered with their eggs and young ; and I nave 



noticed that the gulls and other seafowl that breed there 



