Humboldt’s Squirrel Monkey

Humboldt’s Squirrel Monkey

Saimiri cassiquiarensis

Silhouette: PhyloPic · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~40% · Likely
at Sierra de la Macarena National Park
14 Verified sightings at Sierra de la Macarena National Park From 2019 to 2026
20 Verified sightings across all 4 parks From 2019 to 2026
July Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Humboldt’s Squirrel Monkey

Humboldt's squirrel monkey (Saimiri cassiquiarensis) is a species of squirrel monkey from Brazil, Colombia, Ecuador, Peru and Venezuela. It had previously been considered a subspecies of the common squirrel monkey, S. sciureus, but was elevated to full species status based on a genetic study by Carretero-Pinzón in 2009. A genetic study by Jessica Lynch Alfaro, et al indicated that the Ecuadorian squirrel monkey may be synonymous with Saimiri cassiquiarensis. As of 2018, the Ecuadorian squirrel monkey is generally regarded as a subspecies of Humboldt's squirrel monkey, S. cassiquiarensis macrodon.

Humboldt's squirrel monkey have a head and body length of between 25 and 37 cm (9.8 and 14.6 in) with a tail between 36 and 45 cm (14 and 18 in). Its coloration is similar to that of the Guianan squirrel monkey but the fur on the base of the crown is golden yellow as compared with gray for the Guianan squirrel monkey. It eats fruits when available, primarily between January and June, and also eats insects. It is named after the Prussian naturalist and explorer Alexander von Humboldt (1769-1859). Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Sierra de la Macarena National Park 🇨🇴 Colombia
~40%
2 Anavilhanas National Park 🇧🇷 Brazil
Insufficient data
3 Chingaza National Natural Park 🇨🇴 Colombia
Insufficient data
4 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador
Insufficient data

Quick answers

What are the chances of seeing a Humboldt’s Squirrel Monkey in Sierra de la Macarena National Park?

About 40% of wildlife watchers report a Humboldt’s Squirrel Monkey sighting in Sierra de la Macarena National Park, based on 14 verified sightings from GBIF citizen-science data.

When is the best time to see Humboldt’s Squirrel Monkey in Sierra de la Macarena National Park?

July has the highest sighting rate for Humboldt’s Squirrel Monkey in Sierra de la Macarena National Park in our monthly data.

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