Noisy Night Monkey
Aotus vociferans
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderPrimates
- FamilyAotidae (Night Monkeys)
- GenusAotus
- SpeciesAotus vociferans (Noisy Night Monkey)
Spix's night monkey (Aotus vociferans), also known as the Colombian gray night monkey, noisy night monkey and Spix's owl monkey, is a night monkey species from South America. It is found in Brazil, Colombia, Ecuador and Peru. The Spix's night monkey is a small bodied monkey species usually having a mass of around one kilogram. It belongs to the only nocturnal genus of New World primates, Aotus. This type of monkey can leap farther than most due to it having longer arms than legs. The monkey averages 0.5 meters in height. Wikipedia →
Closest Relatives at Amacayacu National Natural Park
Ecuadorian Squirrel Monkey
Saimiri macrodon
Black-mantled Tamarin
Leontocebus nigricollis
Western Pygmy Marmoset
Cebuella pygmaea
Colombian Red Howler Monkey
Alouatta seniculus
Common Woolly Monkey
Lagothrix lagothricha
Brown Capuchin
Sapajus apella
Lucifer Titi
Cheracebus lucifer
Eastern Pygmy Marmoset
Cebuella niveiventris
Hairy Saki
Pithecia hirsuta
Saddleback Tamarin
Leontocebus fuscicollis
📅 Monthly Probability
Fewer than 5 records of Noisy Night Monkey at Amacayacu National Natural Park — not enough to chart months honestly.
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 4 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 5 | Amacayacu National Natural Park | 🇨🇴 Colombia |