42 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I46 



apparently were not accompanied by conspicuous inflation of the 

 throat region. 



They were almost always much less common than Gulps, but were 

 uttered in the same types of situations, usually by individuals moving 

 about very rapidly and energetically. They were frequently uttered in 

 close temporal association with Gulps. In such cases, the most common 

 arrangement was two or three Gulps, followed by a single Sneeze- 



2.400:- 



1,200-" 





■ ■ " 1 ■ — — — — ' ■ —T 



0.6 1.2 



Fig. 12. — A single "twanging" noise heard while recording adults. 



Based upon a spectrogram by a "Vibralyser." 



grunt, followed by two or three more Gulps, followed by another 

 Sneeze-grunt, etc. 



Sneeze-grunts also were uttered quite frequently in close associa- 

 tion with Moans and Trill patterns. In such cases, the notes were 

 usually arranged in "doublets" of one note of each type: A single 

 Moan followed immediately by a single Sneeze-grunt, or a single 

 Sneeze-grunt followed immediately by a single Low or High Trill, or 

 (most frequently) a single Sneeze-grunt followed immediately by a 

 single Moan. These arrangements were stereotyped enough to suggest 

 that they may have become partly ritualized per se. 



