less variability in the length of each sequence between transitions. It seems that weather also has an effect on duetting; they will spend more time duetting on overcast days rather than clear ones. However, they do not perform duets while it rains. Their vocalizations can be heard up to one kilometer, and come in different frequencies and pitches, making it so that if studied, or with careful listening, you can identify them individually. Adult vocalizations are identifiable through an 83% accuracy and infants with a 48% accuracy with a leave-one-out cross validation method of quantitative research. Therefore, it is easier to identify adult coppery titi monkeys, and harder to identify infants. This is beneficial for territorial boundaries and being able to identify their other pair when vocalizing from farther distances in instances where they cannot use other senses to identify the other. Smelling is a form of communication for the Coppery Titi Monkeys. To identify a monkey from up close, they will smell each other's faces. A way to advance before getting involved in sexual intercourse, a male will smell the female's genitals. Ecological role, predation, and conservation The ecological role of the coppery titi is an important one for the sake of local biodiversity. Coppery titis scatter the seeds of fruits within their habitats, promoting continued growth. Coppery titis are hunted by birds of prey and feral cats. There have been observations of possible predators that have not been officially confirmed which include ocelots, boas, tayras, an unidentified hawk, gray-headed kites, a squirrel monkey, and a capuchin monkey. Threats from human predation are low, as they do not compose the diets of local hunters, unlike larger neotropical primates. Despite this, they are occasionally hunted as bushmeat and for their tails. Due to their location in a remote, isolated region however, the International Union for Conservation of Nature's Red List of Threatened Species (IUCN) puts the coppery titi in the Least Concern (LC) category of endangerment. Anti-predation behavior Another observation that has been conducted is anti-predatory behavior. These monkeys have been seen to have a "mobbing behavior" towards possible predators. The mobbing behavior starts with one male starting an alarm call, this will trigger others to join and in two to three minutes there is a group alarm call that is surrounding the predator. The monkeys move around the predator sporadically, continuing this alarm call, lashing their tails, and swaying