Grey-brown Mouse Lemur

Grey-brown Mouse Lemur

Microcebus griseorufus

Silhouette: Maky (vectorization), Gabriella Skollar (photography), Rebecca Lewis (editing) · PhyloPic

LCLeast ConcernNTVUENCR Endemic
Daily sighting probability ~50% · Likely
at Berenty Reserve

In 3 days ~90% in a week >90%

5 Verified sightings at Berenty Reserve From 2019 to 2026
5 In 1 park
April Best month
🌅 Crepuscular When it's spotted

About the Grey-brown Mouse Lemur

The reddish-gray mouse lemur (Microcebus griseorufus) also known as the gray-brown mouse lemur or rufous-gray mouse lemur, is a small, solitary-but-social, nocturnal and omnivorous primate from the Western Madagascar in the region around Beza Mahafaly Reserve, north to Lamboharana. Like the other lemur species, the reddish-grey mouse lemur is endemic to Madagascar. They generally live in the drier regions of the island. It is categorized as least concerned in the IUCN Red List.

Microcebus griseorufus has a pelage color that is alternating light neutral gray, pale neutral gray, and light pale neutral gray dorsally and ventrally light grayish-white on the anterior two-thirds and bicolored light grayish-white and pale neutral gray on the posterior one-third. It has a cinnamon colored dorsal stripe running from the crown of the head or the shoulders to the end of the tail. The head of this species has a pale neutral gray spot above the nose, cinnamon around the eyes, a clay colored crown, and ears that are light neutral gray. The dorsal side of the tail is cinnamon colored while the ventral side is grayish-beige on the most distal two-thirds and cinnamon... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Berenty Reserve 🇲🇬 Madagascar
~50%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Grey-brown Mouse Lemur in Berenty Reserve?

Likely

About 50% of wildlife watchers report a Grey-brown Mouse Lemur sighting in Berenty Reserve on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.

When is the best time to see a Grey-brown Mouse Lemur in Berenty Reserve?

April and October

In those months about 60% of wildlife watchers report a Grey-brown Mouse Lemur in Berenty Reserve on a given day, against about 10% in November, the lowest month. June, September and December–March have too few records to rate.

What time of day is best to see a Grey-brown Mouse Lemur?

Between 4 and 7 pm

Across all the parks we cover, that three-hour window holds the most Grey-brown Mouse Lemur sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Where else can you see a Grey-brown Mouse Lemur?

Only Berenty Reserve, in our data

Berenty Reserve is the only park on Wallace's Line with enough records to rate Grey-brown Mouse Lemur sightings: about 50% of wildlife watchers there report one on a given day.

Where does the Grey-brown Mouse Lemur sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Grey-brown Mouse Lemur is recorded against all the mammals logged in Berenty Reserve (5 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.

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