SOUNDS ASSOCIATED WITH OTHER CREATURES 133 



Then she tried to conciliate him: 



^ 



t=^ 



252 °^^ 



He persisted still more aggressively, whereat she defended 

 herself vigorously, swinging her right arm at full length to 

 strike him. A genuine fist fight developed during which she 

 barked loudly: 



k± 



253 



ka ka 



Chim's most striking activity was his so called "nest build- 

 ing. " He went at it most industriously, with an assurance 

 that indicated long practice in his ancestral experience, and 

 possibly some observation during his own short life. 



His procedure was to climb a tree to a certain height, 

 usually two-thirds of the way to the top, and select a limb 

 whose branches intersected rather closely, and around which 

 other branches were numerous. He used little time, appar- 

 ently, for deliberation; the writer never saw him hesitate in 

 choosing a site nor abandon one that had been chosen. 



Making himself the center of his activity, he would pull 

 the branches and twigs toward him from all directions, 

 grasping and shoving them into plaCe with his feet, and sitting 

 upon the growing mat as he worked. When it was finished 

 he would lie back for a few minutes to enjoy the fruits of his 

 labor- 



Chim's nests varied in size, sometimes measuring two feet 



