Evidence found
66 records across 2 countries and territories, 1909–1968.
Mandrillus leucophaeus · GBIF taxon key 5219557
Where has the drill been recorded?
Mandrillus leucophaeus occurrence evidence comes from 66 records in 2 countries and territories, from 1909 to 1968. Most records come from Cameroon.
- 66 records
- 2 places
- 17 years recorded
- Mammalia class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-23. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: May.
8 months reach at least 10% of the peak facet count.
What this does not mean
historical describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: May. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
19091968
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where drill has been recorded
The countries below show where occurrence evidence exists for drill. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
Related animals
Others in the family Cercopithecidae.
crab eating macaque
1,189 records
olive baboon
577 records
vervet monkey
400 records
patas monkey
109 records
Barbary macaque
88 records
Record pattern: historical
Historical records with no recent record in the covered source. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Historical records with no recent record in the covered source. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.