Polypedates colletti
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~70% in a week ~90%
Polypedates colletti (Collett's tree frog, Collett's treefrog, Collett's whipping frog or black-spotted tree frog) is a species of frog in the family Rhacophoridae. It is found in the Malay Peninsula (Thailand and Malaysia), southern Vietnam, Borneo, Sumatra, and islands of the South China Sea (including Natuna Islands).
The specific name colletti honours Robert Collett, Norwegian zoologist. Males can reach 52 mm (2.0 in) and females 80 mm (3.1 in) in snout–vent length. The snout is conspicuously acute. The tympanum is distinct. The dorsum is usually brownish or grayish, and most individuals have an hour-glass pattern in their back. The belly is whitish-cream. The throat may have dark vermiculations. The limbs have darkish cross-bars.
The tadpoles grow to 33 mm (1.3 in) in total length and have a marbled pattern on head, trunk, and tail. Polypedates colletti inhabits lowland marshy evergreen rainforest areas, including mildly disturbed, selectively logged forest, at elevations up to 600 m (2,000 ft) above sea level. During the breeding, it forms aggregations around temporary rain pools; adults perch at 1–2 m (3–7 ft) height... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 2 | Bako National Park | 🇲🇾 Malaysia | |
| 3 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
Possible
About 30% of wildlife watchers report a Collett's Tree Frog sighting in Bako National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 5th most-seen of the 11 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
November
In that month about 60% of wildlife watchers report a Collett's Tree Frog in Bako National Park on a given day, against under 5% in March to June, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Collett's Tree Frog sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 3
Of the 3 parks where we can rate Collett's Tree Frog sightings, Bako National Park ranks 2nd at about 30%. The best odds are in Tanjung Puting National Park (Indonesia, about 40%).
Same genus: Polypedates
The closest relatives of the Collett's Tree Frog that you can see in Bako National Park (genus Polypedates, whipping frogs) are Common Tree Frog (about 40%) and Brown-Striped Tree Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Collett's Tree Frog is recorded against all the amphibians logged in Bako National Park (13 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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