MANX SHEARWATER. 353 



WHITE-BILLED DIVER. 



COLYMBUS ADAMSI. 

 Genus COLYMBUS. 



A bird which has occurred only once or twice 

 amongst us. 



BLACK-THROATED DIVER. 



COLYMBUS ARCTICUS. 

 Genus COLYMBUS. 



This bird is rare, but is known to breed very thinly 

 in the Outer Hebrides and in some of the Highland 

 counties. Its habits resemble those of the other 

 Divers. The eggs are generally two in number, similar 

 to those of the Red-throated Diver, but larger. The 

 bird seems to build a nest when it breeds in swamps, 

 at other times it lays its eggs upon the mossy ground 

 in a slight hollow, occasionally lined with one or two 

 scraps of sedge. 



MANX SHEARWATER. 



PUFFINUS ANGLORUM. 



Family PROCELLARIID^E. Genus PUFFINUS. 



Manx Petrel Shearwater Petrel Manx Puffin Scrapire. 



The Manx Shearwater is the best known of the 

 Shearwaters that frequent the British Isles. It has 

 its name from the way in which it skims with great 

 swiftness over the surface of the water, following the 

 curves of the waves up and down as it darts forward 



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