Cercopithecus neglectus
Silhouette: Kai Caspar · PhyloPic
In 3 days >90%
De Brazza's monkey (Cercopithecus neglectus) is an Old World monkey endemic to the riverine and swamp forests of central Africa. The largest species in the guenon family, it is one of the most widespread arboreal African primates. Aside from size, it can be differentiated from other Cercopithecus monkeys by its orange diadem and white beard. Due to its cryptic nature, the species is not well documented in all of its habitats but has shown unique traits, such as pair-bonding and aggressive behavior towards other guenons.
Locally known as swamp monkeys, these primates are named after the Italian naturalist and explorer Jacques Savorgnan de Brazza. Their scientific species name, neglectus, which means to pay no attention to, was given to them because of their ability to hide from both humans and predators.
The De Brazza's monkey is the most sexually dimorphic species of guenon; males weigh around 7 kilograms, while females weigh around 4 kilograms. Adults have grey agouti fur with a reddish-brown back, black limbs and tail, and a white rump. Both sexes have cheek pouches they use to carry food while they forage. Males have a distinct blue scrotum, while... Wikipedia →
Social call0:47
Congo (Democratic Republic) · 2025
© Guilherme Melo · XC1089074 · CC BY-NC-SA 4.0
Recording0:31
Uganda · 2019
© Yvonne A. de Jong · iNaturalist · CC BY-NC-SA 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Semuliki National Park | 🇺🇬 Uganda |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States | |
| 2 | Pairi Daiza | 🇧🇪 Belgium | |
| 3 | Prague Zoo | 🇨🇿 Czechia | |
| 4 | ZooParc de Beauval | 🇫🇷 France | |
| 5 | Barcelona Zoo | 🇪🇸 Spain | |
| 6 | Cabarceno Natural Park | 🇪🇸 Spain | |
| 7 | Minnesota Zoo | 🇺🇸 United States | |
| 8 | Safari West | 🇺🇸 United States | |
| 9 | Nashville Zoo at Grassmere | 🇺🇸 United States | |
| 10 | 西霞口神雕山野生動物世界 | 🇨🇳 China | |
| 11 | Shanghai Zoo | 🇨🇳 China | |
| 12 | Seoul Zoo | 🇰🇷 South Korea | |
| 13 | Omaha’s Henry Doorly Zoo and Aquarium | 🇺🇸 United States | |
| 14 | Shenzhen Safari Park | 🇨🇳 China | |
| 15 | Milwaukee County Zoo | 🇺🇸 United States | |
| 16 | Nanjing Hongshan Forest Zoo | 🇨🇳 China | |
| 17 | Johannesburg Zoo | 🇿🇦 South Africa | |
| 18 | Cape May County Park & Zoo | 🇺🇸 United States | |
| 19 | Wildlife World Zoo | 🇺🇸 United States | |
| 20 | Wuhan Zoo | 🇨🇳 China | |
| 21 | Birmingham Zoo | 🇺🇸 United States | |
| 22 | Leofoo Village Theme Park | 🇹🇼 Taiwan | |
| 23 | Howletts Wild Animal Park | 🇬🇧 United Kingdom | |
| 24 | Nanning Zoo | 🇨🇳 China | |
| 25 | Guangzhou Zoo | 🇨🇳 China | |
| 26 | Zoo La Barben | 🇫🇷 France | |
| 27 | Kyiv Zoo | 🇺🇦 Ukraine | |
| 28 | Franklin Park Zoo | 🇺🇸 United States | |
| 29 | Tanganyika Wildlife Park | 🇺🇸 United States | |
| 30 | National Zoo & Aquarium | 🇦🇺 Australia | |
| 31 | Oregon Zoo | 🇺🇸 United States | |
| 32 | Lisbon Zoo | 🇵🇹 Portugal | |
| 33 | Kunming Zoo | 🇨🇳 China | |
| 34 | Singapore Zoo | 🇸🇬 Singapore | |
| 35 | Houston Zoo | 🇺🇸 United States | |
| 36 | Fort Wayne Children's Zoo | 🇺🇸 United States | |
| 37 | La Palmyre Zoo | 🇫🇷 France | |
| 38 | Saigon Zoo and Botanical Gardens | 🇻🇳 Vietnam | |
| 39 | Safari North Wildlife Park | 🇺🇸 United States | |
| 40 | 杭州动物园 | 🇨🇳 China | |
| 41 | Зоопарк ХІІ Місяців | 🇺🇦 Ukraine | |
| 42 | Asahiyama Zoo | 🇯🇵 Japan | |
| 43 | Terra Natura Murcia | 🇪🇸 Spain | |
| 44 | Aquarama Barcelona | 🇪🇸 Spain | |
| 45 | Lincoln Park Zoo | 🇺🇸 United States | |
| 46 | Paphos Zoo | 🇨🇾 Cyprus | |
| 47 | Loro Parque | 🇪🇸 Spain | |
| 48 | Leningrad Zoo | 🇷🇺 Russia | |
| 49 | Zoopark Limpopo | 🇷🇺 Russia | |
| 50 | Ellen Trout Zoo | 🇺🇸 United States |
Very likely
About 70% of wildlife watchers report a De Brazza’s Monkey sighting in Semuliki National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 7 mammals we can rate there. Over three days the chance rises to over 90%, if each day is a fresh chance.
January, June–July and October–November
In those months about 70% of wildlife watchers report a De Brazza’s Monkey in Semuliki National Park on a given day, against about 30% in April, the lowest month. March, May, August–September and December have too few records to rate.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most De Brazza’s Monkey sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Semuliki National Park, in our data
Semuliki National Park is the only park on Wallace's Line with enough records to rate De Brazza’s Monkey sightings: about 70% of wildlife watchers there report one on a given day.
Same genus: Cercopithecus
The closest relatives of the De Brazza’s Monkey that you can see in Semuliki National Park (genus Cercopithecus, Guenons) are Dent’s Monkey (about 70%) and Red-tailed Monkey (about 70%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the De Brazza’s Monkey is recorded against all the mammals logged in Semuliki National Park (9 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
