These tails are often wrapped around branches or used as a balancing tool. Their calls can range from soft barks to loud roars, serving as a means of communication within their social groups and establishing their presence in the dense canopy.
Before I saw these white-faced capuchins, I heard them. Their loud calls echoed around us as we walked through the forest. At first, I was confused as to what I was hearing, and I asked my friend what the screeches were. He told me that they were either coming from white-faced capuchins or from howler monkeys, but that we wouldn't know which unless we spotted them ourselves. We scanned the canopy as we walked, simultaneously listening for calls and hoping to see movement of some kind. Finally, I saw a blur of brown fur jump from one tree to another directly in front of us, and I was ecstatic to have located the first monkey. After a quick glance, the striking white face of the monkey revealed that we were surrounding by a group of white-faced capuchins. After spotting the first one, we continued to find more swinging from tree to tree and communicating with one another. I was in awe of the fact that we were so close to them. I could have even reached out and touched one at one point, that's how close they were. I remember looking at their faces and being stunned at how intelligent and expressive their eyes looked.