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 →
10–20% of wildlife watchers report a Noisy Night Monkey sighting in Anavilhanas National Park, based on 5 days of visitor records from GBIF citizen-science data.
Closest Relatives at Anavilhanas National Park
Humboldt’s Squirrel Monkey
Saimiri cassiquiarensis
Common Squirrel Monkey
Saimiri sciureus
Brown Capuchin
Sapajus apella
Colombian Red Howler Monkey
Alouatta seniculus
Guiana Spider Monkey
Ateles paniscus
Golden-handed Tamarin
Saguinus midas
Spix's white-fronted capuchin
Cebus unicolor
📅 Monthly Probability
☀️ 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 |
Quick answers
What are the chances of seeing a Noisy Night Monkey in Anavilhanas National Park?
About 19% of wildlife watchers report a Noisy Night Monkey sighting in Anavilhanas National Park, based on 5 days of visitor records from GBIF citizen-science data.
When is the best time to see Noisy Night Monkey in Anavilhanas National Park?
August has the highest sighting rate for Noisy Night Monkey in Anavilhanas National Park in our monthly data.