Microhyla butleri
Silhouette: Vijay Karthick · PhyloPic
In 3 days ~40% in a week ~70%
The painted chorus frog (Microhyla butleri), also commonly known as Butler's narrow-mouthed toad, Butler's pigmy frog, Butler's rice frog, Butler's ricefrog, noisy frog or tubercled pygmy frog, is a species of frog in the family Microhylidae. It is found in northeast India, Myanmar, southern China, Hong Kong, Taiwan, Thailand, Cambodia, Laos, Vietnam, Peninsular Malaysia, and Singapore.
Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, subtropical or tropical moist shrubland, swamps, intermittent freshwater marshes, arable land, plantations, rural gardens, ponds, open excavations, and irrigated land. It is not considered threatened by the IUCN.
Microhyla butleri have skin that is smooth or with small smooth warts above. They are brownish on their back, pale reddish on the sides and limbs, and whitish beneath. Male Microhyla butleri grow to a snout-vent length of 21–23 mm (0.83–0.91 in) and females to 23–26 mm (0.91–1.02 in).
Microhyla butleri has recently been added to the 'Bukit Timah Nature Reserve (BTNR) checklist in 2019. Amphibian and... Wikipedia →
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China · 2025
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Malaysia · 2025
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Taiwan · 2025
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Butler's Ricefrog sighting in Cat Tien National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 18th most-seen of the 21 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Butler's Ricefrog in Cat Tien National Park on a given day, against under 5% in March–May and July–January, the lowest months. That is one of Cat Tien National Park's wettest months, with about 340 mm of rain against 15 mm in February.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Butler's Ricefrog sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Butler's Ricefrog sightings, Cat Tien National Park has the highest daily chance: about 10%. Next come Kaeng Krachan National Park (Thailand, about 10%).
Same genus: Microhyla
The closest relatives of the Butler's Ricefrog that you can see in Cat Tien National Park (genus Microhyla, Rice Frogs) are Mukhlesur's Narrow-mouthed Frog (about 40%), Arcuate-spotted Pygmy Frog (about 20%) and Ninh Thuan Narrow-mouth Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Butler's Ricefrog is recorded against all the amphibians logged in Cat Tien National Park (7 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.
