Ansonia inthanon
Silhouette: Michael Scroggie, from original photograph by Gary M. Stolz, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~30% in a week ~60%
Ansonia inthanon is a species of toad in the family Bufonidae. A small stream toad, measuring only 22-26mm in length. Its natural habitat is near torrents in subtropical forest on sloping land. It is threatened by habitat loss for agriculture, use by medical research (although this is not a significant threat) and by the introduced American bullfrog. Though it is only known from Doi Inthanon National Park and Thongphaphum in Kanchanaburi Province, it is not rare in suitable habitat. The species was recently discovered in a third locality, Doi Suthep National Park in Chiang Mai Province, and may also exist in similar habitat in northern Thailand and adjacent Myanmar.
Hakim, Jonathan (2016). "Inthanon Stream Toad". Bangkok Herps. Retrieved 30 April 2017. Matsui, Masafumi; Nabhitabhata, Jarujin; Panha, Somsak (December 1998). "A New Ansonia from Northern Thailand (Anura: Bufonidae)". Herpetologica. 54 (4): 448–454.
van Dijk, P.P.; Khonsue, W. (2004). "Ansonia inthanon". Archived from the original on 30 September 2007. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Inthanon Stream Toad sighting in Doi Inthanon National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 16th most-seen of the 17 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
October
In that month about 30% of wildlife watchers report an Inthanon Stream Toad in Doi Inthanon National Park on a given day, against under 5% in June–July, September and November–April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Inthanon Stream Toad sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Doi Inthanon National Park, in our data
Doi Inthanon National Park is the only park on Wallace's Line with enough records to rate Inthanon Stream Toad sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Anura
The closest relatives of the Inthanon Stream Toad that you can see in Doi Inthanon National Park (order Anura, Frogs and Toads) are Marbled Cascade Frog (about 40%), Doi Inthanon Rock Frog (about 30%) and Ban Khun Klang Wart Frog (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Inthanon Stream Toad is recorded against all the amphibians logged in Doi Inthanon National Park (9 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.
