GRKV lUlKASTKl) MAR TINS .'j-il 



they ai'c liis ])ro])cr food, btcuiisc lie lias so hvvu ft'd froii) 

 the time of hatehiiio-. and he finally leanis how to eateh them 

 only after instrnetion hy and imitation of his parents, 



These observations show, in this hied at any rate, — 

 tlionnh |)i-()hal)ly in many others — that eertain habits have 

 been aecjnired, due to the ])i-oteetion afforded by the advanee 

 of eivilization whieh, if the bird were transplanted from eiv- 

 ilization to aneient eonditions, would be of ^reat detriment 

 to it. These newly acniuiird habits dominate its natui-al 

 instincts. 



