190 



VERTEBRATA: AVES OR BIRDS. 



FIG. 222 



Moa or Dinomis (D. giganteus), restored ; arid three individuals of the Apteryx (A). 



The African Ostrich carries its head about eight feet 

 high. Its feet are two-toed, and the outer toe is destitute 

 of a nail. It is so swift of foot that no animal can over- 

 take it in running. Its eggs weigli about three pounds 

 each ! 



The South American Ostrich or Rhea is a much smaller 

 bird, and has three toes, each provided with a nail. 



The Apteryx has the wings so rudimentary that they 



