FOOD AND ITS UTILISATION 



97 



Adaptations o! the Feet. — Most of the special adapta- 

 tions of birds' feet have, of course, to do with walking, 

 running, hopping, climbing, swimming, and perching, but 



Fig. 23. — Various types of feet in birds, i, shag (swimming); 

 2, crow (perching, lifting); 3, ptarmigan (stockinged in feathers); 

 4, jungle fowl (walking, scraping) ; 5, coot (lobate, swimming) ; 6,jacana 

 (suited for walking on floating plants) ; 7, sea-eagle (raptorial). 



some have to do with food-catching. The parrot uses its 

 foot as a hand, picking up its food and holding it to the 



II 



