Polypedates macrotis
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~60% in a week ~90%
Polypedates macrotis, commonly known as the dark-eared treefrog, as well as the Bongao tree frog, Bongao bubble-nest frog, Baram whipping frog, or brown-striped tree frog, is a species of tree frog (a "true" frog) in the family Rhacophoridae. This species is found on the Malay Peninsula and Southern Thailand, Sumatra and Java (Indonesia), Borneo (including Brunei) and parts of the Philippines, in addition to several smaller islands within the Coral Triangle ecoregion.
Bongao, from the common name "Bongao tree frog", is in reference to Bongao Island, the type locality of Philautus montanus—now synonymized with Polypedates macrotis. Additionally, "Baram whipping frog" is referencing Baram, a district in Sarawak, East Malaysia (Borneo), and is also the name of the type locality of P. macrotis.
Male Polypedates macrotis grow to a snout–vent length of about 60 mm (2.4 in) and females to 85 mm (3.3 in). Tadpoles are up to 60 mm (2.4 in) in length. Dorsum is brown with a darker band behind the eye that covers the tympanum, tapering along the side.
Polypedates macrotis is similar to Polypedates leucomystax but differs from it slightly in colouration and body proportions.... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Sepilok | 🇲🇾 Malaysia | |
| 3 | Kinabalu Park | 🇲🇾 Malaysia | |
| 4 | Bako National Park | 🇲🇾 Malaysia | |
| 5 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
Possible
About 30% of wildlife watchers report a Brown-Striped Tree Frog sighting in Sepilok on a given day, based on 31 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 3rd most-seen of the 18 amphibians we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
October
In that month about 40% of wildlife watchers report a Brown-Striped Tree Frog in Sepilok on a given day, against under 5% in December, the lowest month.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Brown-Striped Tree Frog sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 5
Of the 5 parks where we can rate Brown-Striped Tree Frog sightings, Sepilok ranks 2nd at about 30%. The best odds are in Danum Valley Conservation Area (Malaysia, about 60%). All parks ranked.
Same genus: Polypedates
The closest relatives of the Brown-Striped Tree Frog that you can see in Sepilok (genus Polypedates, whipping frogs) are File-eared Tree Frog (about 20%) and Common Tree Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Brown-Striped Tree Frog is recorded against all the amphibians logged in Sepilok (31 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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