Odorrana swinhoana
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~70% in a week ~90%
Odorrana swinhoana is a species of frog in the family Ranidae. It is endemic to Taiwan and widely distributed in hilly areas below 2,000 m (6,600 ft). It is named for Robert Swinhoe, a British naturalist and diplomat. Its common names include Swinhoe's brown frog, Bangkimtsing frog, brown-backed odorous frog, Taiwan odorous frog, and Taiwan sucker frog.
Odorrana swinhoana are medium to large-sized frogs, reaching a maximum snout-vent length of 12 cm (4.7 in). They can live up to 11 years. Sizes vary by location; males from a low-lying location measured on average 58 and 73 mm (2.3 and 2.9 in) in snout–vent length, respectively, and from a highland location 73 and 85 mm (2.9 and 3.3 in), respectively. The dorsum is bright green and the flanks are brown or green, broken up by white or dark mottling. The dorsal skin is finely pebbled. The venter is white. The finger tips bear well developed discs. The toes have well-developed webbing.
The tadpoles are adapted to running water and have a ventral sucking disc. The back is green. Odorrana swinhoana occur in hill streams in broadleaf forests. They forage on both terrestrial and aquatic prey... Wikipedia →
Recording0:28
Taiwan · 2024
© Hong · iNaturalist · CC BY-NC 4.0
Recording0:23
Taiwan · 2023
© Max Hsieh(雁子) · iNaturalist · CC BY-NC 4.0
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Taiwan · 2024
© Hua Wan · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taipei | 🇹🇼 Taiwan |
Possible
About 30% of wildlife watchers report a Swinhoe's frog sighting in Taroko National Park on a given day, based on 35 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 8 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.
April, August and November
In those months about 40% of wildlife watchers report a Swinhoe's frog in Taroko National Park 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 Swinhoe's frog sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Taroko National Park, in our data
Taroko National Park is the only park on Wallace's Line with enough records to rate Swinhoe's frog sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Swinhoe's frog is recorded against all the amphibians logged in Taroko National Park (35 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.
