3 



The Bird 



a reptile and working up to a feather; for, if we except 

 the down, there seems to be no connecting link left. 



FIG. 18. Young Brown Pelicans; hatched naked and helpless (altricial). 

 1/4 natural size. 



FIG. 19. Young Red Jungle Fowl one day old; hatched covered with down and 

 able within a few hours to help itself (precocial). Almost natural size. 



Although that old, old fossil bird Archceopteryx 

 still retained reptile-like teeth, fingers and tail, it had 



