Collared titi causes them to give alarm peeps, probably because they must be especially alert to predators. A margay was detected alongside a dead collared titi during recent censuses on the Purité River in Colombia, although the monkey was not freshly killed. The local group was no longer observed after this. The collared titi is not considered to be endangered, but where there are many colonists this primate tends to disappear, due to deforestation. The species is commonly hunted and eaten by indigenous peoples or used as bait for hunting larger carnivores or for fishing; however, where there is plenty of forest
Filippo Titi had been published nearly a century earlier by Francesco Bocchi. A nineteenth century guidebook to Rome, which focused more on antiquity, was published by Carlo Fea. See Seven Pilgrim Churches of Rome for other antecedent or roughly contemporary guidebooks. Filippo Titi Abate Filippo Titi was an Italian Roman Catholic Protonotary apostolic, and an art historian, best known for his inventory of the artistic content of churches in Rome, titled "Studio di Pittura scoltura et architettura nelle Chiese di Roma", published by Mancini in 1674 Titi was born in town of Città di Castello in Umbria. He studied arts with Virgilio