134 



VOICE AND 



OF CHIMPANZEES 



across. He was usually silent when making them, the follow- 

 ing being the only utterance taken during nest building. 

 Two isolated tones: 



254 



A rapid phrase: 



255 



j-4 JJ 



k± 



-t^*^ 



Panzee showed no inclination to make nests; once or twice 

 however she manifested some interest in Chim's activity. 



They had been at the sand-hole for some time when Chim 

 went to a group of birch trees, a little distance away, and 

 made a nest. When it was finished he swung down, and 

 went back to tease Panzee. She remonstrated: 



256 



ooh 



Then drawing him to her, she began to look through his fur 

 as though making an affectionate appeal to him to be kind: 



Chim ran back to the tree, and climbing higher, made a large 

 nest, about two feet wide. Then dropping down he filled his 



