NATATORES. 



503 



Jackass Penguin (Spheniscus demersus) of the Falkland Islands, 

 and the King Penguin (Aptenodytes Patagonica) of the Straits 

 of Magalhaens. In the Auks (Altidcz) the wings are better 

 developed than in the Penguins, and they contain true quill 

 feathers ; but they are still short as compared with the size of 

 the body, and are of more use as fins than for flight. The 

 Great Auk or Gare-fowl (Alca impennis) is remarkable for being 

 one of the birds which appear to have become entirely extinct 



Fig. 218. Jackass Penguin (Spheniscus demers us). 



within the human period, having been, in fact, destroyed by 

 man himself. It used to abound in the arctic regions, and 

 occasionally visited our own shores in the winter. The little 

 Auk (Mergulus alba) occurs still in abundance in the seas of 

 the arctic regions. Other well-known members of this group 

 are the Razor-bill, the Puffins (Fratercula arctica], and the 

 Guillemots ( Uria). The Guillemots have a short tail, narrow 

 and pointed wings, short feet, and no hallux. Like the other 



