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50

irregular series of Short Whines. Too brief and variable to be considered TW in the geoffroyi sense. Also some single Short Whines. (It also seems probable that many Trll's ended with a single softer note - which may have been "transitional" to a typical Short Whine. This might appear to be "vestigial" TW of the geoffroyi sort. Is the absence of real TW in this species a specialized character?????) One or more inds. also uttered one or two single Whistles. Rather more plaintive than many Whistles of the species. But apparently not LW. Certainly provoked by and directed toward us.

No trace of any infantile calls.

Group certainly alone.

10:10 am. Guide takes us to another salado.  Surrounded by tall forest. He says that he has seen Red Howlers here also.

NOTE: Why are the most conspicuous primate herbivores here largely or completely confined to areas in and around swamps and marshes????

10:30 am. Region nice mature forest. See group Cebus high in tall trees. Distant.  Very quiet. Certainly no Saimiri anywhere nearby. Guide and John get glimpse of one individual. They are sure that it was apella. Guide and I see underside of another individual. Very rufescent. I.E. possibly C. albifrons. I.E. this may have been a mixed apella-albifrons group.

Group first seen included approximately 3 inds. All very coherent. Absolutely no vocalizations until we get quite close. At which point, one ind. utters 3 single "Yuk" Alarm 

Transcription Notes:
.first syllable of first word brought over from previous page (since previous page already completed) & last word completed per Smithsonian