218 



Wild Birds 



of this instinct is most opportune, since they are not tempted 

 to leave the security of their tunnel in the ground until they can 

 make long excursions and follow their parents to the favorite 

 fishing grounds. 



Fig. 132. Red-tailed Hawk, four months old, in attitude of fear. The 

 young bird at the nest will spread its wings as well as erect its Eliza- 

 bethan fiill, and hiss at intruders. 



Turning now to the praecocial birds, according to the best 

 testimony, fear in the domestic chick hatched in an incubator is 

 at first very slight, and is soon checked by contrary impulses 

 such as to nestle in a warm place, unless the instinct be brought 

 into immediate exercise. 



Mr. Charles A. Allen says that the newly hatched young of 

 the Black Duck (Anas obscura) show no fear, but will "cuddle 



