34 



ELEMENTS OE OENITHOLOGY. 



ships in their course, and flying round them at a great 

 height with the velocity and directness of a small steam-enginei ; 

 Nevertheless, though they depart far from land they do not do 

 so to the extent to which Petrels and the Frigate-bird will go. 

 They are gregarious, and nest together on coasts where rocks 



Pig. 33. 



The European Flamingo {Phamicopterus autiquorum). 



and bushes are found in proximity. They have much the appear- 

 ance of Terns, but are shorter and somewhat larger. 



We have now noted various Aquatic Birds that are quite 

 strange to England, and which are mostly marine, though 

 some frequent rivers. We will next pass on to consider 



