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15      9

Sakis.  50-60 ft up.  All together at first.  Within 10 ft of one another. All apparently adult (altho I can't guarantee that one wasn't smaller than the others).  Quite silent.  Moderately active.  Apparently feeding in much the same way as undisturbed individual seen yesterday.  Searching for insects on leaves.  Then 2 individuals go off in one direction.  Still very close together.  The third goes off in another direction.  This one finally sees us.  Utters a few "Rattles."  Retreats about 20 yards.  Stands up to get a better look.  No SS.  Seems to relax a little.  Utters a few, weak, single Grunts.  Falls silent.  Gradually drifts off.

  8:00 am.  We have now walked through a great mass of forest of quite varied types, without seeing anything more.   The rain has stopped.  But the forest is dripping.  Possibly we have merely overlooked Sakis.  But the apparent absence of tamarins probably is significant.  They may just stay in their holes on rainy days (?).

  8:30 am.  Forest beginning to dry out.  Reach region of lots of thin saplings and vines, a sort of second growth pocket within more mature forest.  Hear something which sounds like LW.  Series of 2 to 5 long whistles.  Very thin and high.  Longer on the average than the Whistles heard uttered by the fusciolles yesterday.  Series certainly steriotyped.  Three notes by far the most common type.  When 5 notes uttered, the last two tend to "run together".  

  No other sounds audible.

  Then finally see animals.  Certainly fusciolles.