80 NOTES 



elements of behavior which could, only be useful in intimidating 

 the prey I am not sure. I am inclined to think that such an 

 analysis could be made. That the instinct is not absolutely 

 rigid is evidenced by the fact that the stimulus lacked most of 

 the characteristics that the normal stimulus would have. There 

 was no movement, no feathers, no hair, no odor of living animal. 

 It may have been the odor of the meat, for bread did not stim- 

 ulate the behavior, nor did any other kind of food even though 

 it was dark like the meat. 



The hawk was quite tame from the start and I could handle 

 it with impunity. Only once did I find out the razor-like quality 

 of its beak and claws and that was when in changing it from one 

 cage to another I hurt its wing. The dogs nosed about the 

 edges of its cage but it was never frightened by them nor did it 

 show any disposition to attack them. 



Indiana University M. E. Haggerty 



