ZOOLOGY 



Photograph by E. R. Sanborn, N. Y. Zoo'l. Soc. 



FIG. 156. California condor (Gymnogyps calij "ornianus) , the largest of North 

 American vultures, now extremely rare. 



Cassowaries (c) Casuariiformes. Cassowaries and emeus. The 



emeus are Australian, while the cassowaries 

 inhabit New Guinea and the adjacent islands. 

 The wings are quite rudimentary, and there 

 are no ornamental wing and tail plumes such 

 as are seen in the ostrich. The cassowaries 

 have a long crest or helmet on the head, and 

 the bare skin of the neck and head are brightly 

 colored. 



(d) Rheiformes. The rheas or South American 

 ostriches ; differing from true ostriches by the 

 presence of three toes (ostriches having only 

 two), a feathered neck, practically no tail, and 

 other characters. Three species are known ; 

 one of them, Rhea darzvinii, was discovered by 

 Darwin when he made his journey around the 

 world. 



South 



American 



ostriches 



