BIRDS 



385 



(<?) Apterygiformes. The Apteryx or kiwi of New The kiwi of 

 Zealand ; a genus of birds about the size of a Ja nd 

 fowl, with long, slender beak and entirely 

 rudimentary wings. They are somewhat re- 

 lated to the .emeus on the one hand, and the 

 extinct moas on the other, but constitute a 

 very distinct and isolated group, surviving in 

 New Zealand because of the absence of carniv- 

 orous mammals and other enemies. Five 

 forms are recognized. 



(/) Colymbiformes. Loons and grebes. Here we Loons and 

 first come to a North American group, grebes 

 well represented in the northern hemisphere. 

 They are aquatic birds, with webbed or lobed 

 toes, and capable of vigorous flight. 

 Procellariiformes. Albatrosses and petrels, ma- Petrels and 



(g) 



(h) 



rine birds with tubular external nostrils. Thev * eirrela - 



* 11V6S 



are quite distinct from the gulls, with which they 

 are often associated and which they more or less 

 resemble. Thev 



it 



are to be found in 

 mid-ocean, and 

 nest on isolated 

 rocky islets, where 

 they are usually 

 free from moles- 

 tation. 



C i c o n i if o r m e s . 

 Storklike birds, a 

 miscellaneous as- 

 semblage includ- 

 ing storks, ibises, 

 herons, cormo- 



rants, pelicans, India to Australia. 



Photograph by E. R. Sanborn, 

 N. Y. Zool. Soc. 



FIG. 157. Black-necked stork, or jabiru 

 (Xenorhynchus asiaticus), found from 



