30 The Bird 
a reptile—and working up to a feather; for, if we except 
the down, there seems to be no connecting link left. 
Fic. 18.—Young Brown Pelicans; hatched naked and helpless (altricial). 
1/4 natural size. 
Fic. 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 Archeopteryx 
still retained reptile-like teeth, fingers and tail, it had 
