Callosciurus pygerythrus
Silhouette: Kai Caspar · PhyloPic
In 3 days ~90% in a week >90%
The Irrawaddy squirrel (Callosciurus pygerythrus) or hoary-bellied Himalayan squirrel is a species of rodent in the family Sciuridae. Irrawaddy squirrels vary in fur color, with some squirrels being greyish-brown and reddish-brown, and some squirrels being grizzled. Some squirrels have dark tips on their tails and pale hip patches. Its head to body length is about 20 centimeters and its tail length is about 20 centimeters as well. Irrawaddy squirrels weigh approximately 45 grams.
It is native to Bangladesh, China, India, Myanmar, and Nepal. Most squirrels that live in Myanmar live west of the Irrawaddy River. Irrawaddy squirrels can live in several types of forests, including deciduous broad-leaved woodland, coniferous evergreen forests, mixed agricultural areas, and secondary growth forests. They can also live in lowlands and lower mountainous regions, at around 1500 meters. It is threatened by habitat loss.
Irrawaddy squirrels mainly eat nuts, seeds, fruits, bark, lichen, and various types of vegetation, however, they may occasionally eat insects and small vertebrates. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaziranga National Park | 🇮🇳 India | |
| 2 | Manas National Park | 🇮🇳 India | |
| 3 | Royal Manas National Park | 🇧🇹 Bhutan |
Likely
About 50% of wildlife watchers report an Irrawaddy Squirrel sighting in Kaziranga National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 16 mammals we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
March
In that month about 70% of wildlife watchers report an Irrawaddy Squirrel in Kaziranga National Park on a given day, against about 10% in February and December, the lowest months. That is one of Kaziranga National Park's driest months, with about 95 mm of rain against 520 mm in June. June to September have too few records to rate.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Irrawaddy Squirrel sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 3 parks where we can rate Irrawaddy Squirrel sightings, Kaziranga National Park has the highest daily chance: about 50%. Next come Manas National Park (India, about 40%) and Royal Manas National Park (Bhutan, about 40%).
GBIF citizen-science records
It is estimated from how often the Irrawaddy Squirrel is recorded against all the mammals logged in Kaziranga National Park (12 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.
