Titi monkey calling in the morning.
Habitat: scrub forest bordering town.
The original is a video, not a photo, but you must go to flickr to listen to it.
Seen at the edge of the Cuyabeno River just a few hundred meters below the National Wildlife Reserve entrance.
The Pitheciidae are one of the five families of New World monkeys now recognised. Formerly they were included in the family Atelidae. The family includes the titis, saki monkeys and uakaris. Most species are native to the Amazonia region of Brazil, with some being found from Colombia in the north to Bolivia in the south.