Boa constrictor
White-fronted capuchins frequently travel with squirrel monkeys and also sometimes travel with the tufted capuchin and Venezuelan red howler. The double-toothed kite often accompanies these monkeys, exactly as it does other species of primates. White-fronted capuchins feel threatened by avian predators, and they are very vigilant around any large bird of prey. In Vichada, Colombia, tayra, "Boa constrictor" and the ornate hawk-eagle have been seen trying to capture white-fronted capuchins. After detecting the tayra and "Boa constrictor" the members of the troop showed little fear and caution, even though these animals threatened the monkeys. The most common behavior after detecting a potential ground predator is "ya-ya" vocalization and branch breaking over the head of the potential predator, similar to the display of the brown woolly monkey. In contrast, after being frightened by a male ornate hawk-eagle the monkeys screamed intensely only once, then hid quietly, some descending to the ground to sneak away.