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10        4


  7:30 am. Several hundred yards further on. See another Saki. 40 ft up in sapling. Apparently aware of us from first. Just freezes.  In sitting up posture. Stays frozen for 12 minutes. Then moves off. Making long leaps, but apparently not too badly frightened. Stops to look at us from time to time. No sign of SS. Animal was quite silent while frozen. Then utters lots of Rattles and some Roars as it moves off. When 2 patterns occur together, sequence in Rattle-Roar. Also, many of the Rattles ended with lower, louder note. Which sounds like abbreviated, "strangled" Roar or Grunt. 

   Then we see that there is another Saki about 60 ft away. High in large tree. Moves off when we approach. Running & leaping 40-60 ft up. Uttering lots of pure Rattles as it does so. 

  Rattle may be homologous with Trill of tamarins. 

  Apparently these 2 individuals were a pair. First individual had lots of black hair framing face. The other apparently grayer. 

  Looks as if the Sakis here live in pairs. But members of pairs often or usually quite far apart when feeding. 

  NOTE: All Sakis seen so far apparently adult.

  8:15 am  Seen coming out. Then hear unmistakable Callicebus Long in distance!!!!

  Go try to find the Callicebus.  Discover that they are in very low second growth scrub!!!!  No more than 20ft high at most. And Singing madly. Resonating and Pumping Notes; usually beginning, I think, with Cheek notes.