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Then quietly drifts off. We do not follow.

COMMENT: Now Heriberto tells me that he thinks he has seen albifrons with paella and/or Saimiri only in certain particular trees which were in particularly abundant fruit at the time. And he agrees that the Saimiri-apella association is much more common than any of the possible others. So it looks as if Artistides was right after all.

10:25. Some distance further on. Another region mixed mature forest with small overgrown clearings. Come across group of 5 Sabis[[?]]. All very dispersed 50-100 yds apart. Ranging 60-100 ft up in tall trees. First individual to see us utters Wail. Then Wail-Roar. This answered by a Roar from a more distant individual. Then first ind. utters intermediate between L Trill and Roar or Grunt. Then they all go bounding away (coming together as they do so).

10:35. Come to another Salado in midst of mature forest. See single Red Howler (adult ♀️) about 15-20 ft up in small tree near source of stream which quickly broadens to form the real Salado itself. It sees us at same time, and leaps away into tall trees 60-80 ft up and quickly disappears. Quite silent throughout. Certainly not associated with any other species. (I presume that it must have companions of its own species somewhere. But they certainly were not nearby at the time.)

Heriberto is convinced that this animal was coming down to the stream to drink. And it certainly looks as if he were right. (He also says that he has seen howlers at

Transcription Notes:
Unsure whether to notate when underlined? - No.