iv SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I46 



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10. One Moan, uttered by an adult 37 



11. Two Gulps, uttered by an adult 39 



12. A single "twanging" noise heard while recording adults 42 



13. Three Hoots, uttered by an adult female 50 



14. Positions and postures sometimes assumed by mated individuals during 



Allogrooming 56 



15. Four typical "pure" Squeaks, uttered by an immature 67 



16. A single very loud Squeak, uttered by an immature 68 



17. A "pure" Squeak, followed by a longer note more or less perfectly 



intermediate between a Squeak and a short Scream. Uttered by 



an immature 69 



18. A series of four notes uttered by an immature 70 



19. Two loud trilling patterns, intermediate between "pure" High Trills 



and Screams, but most similar to the former. Uttered by an im- 

 mature 72 



20. Two Hoots, uttered by an immature male 75 



21. A single "Brrrrp" sound, uttered by an immature 76 



22. An infant uttering Squeaks 11 



