Odorrana swinhoana
Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~50% in a week ~80%
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 →
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Taiwan · 2024
© Hong · iNaturalist · CC BY-NC 4.0
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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 20% of wildlife watchers report a Swinhoe's frog sighting in Taipei on a given day, based on 280 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 18 amphibians we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
August and September
In those months about 30% of wildlife watchers report a Swinhoe's frog in Taipei on a given day, against about 10% in February to May, the lowest months. Those are among Taipei's wettest months, with about 250 mm of rain a month against 90 mm in February.
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 Taipei, in our data
Taipei is the only city on Wallace's Line with enough records to rate Swinhoe's frog sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Ranidae
The closest relatives of the Swinhoe's frog that you can see in Taipei (family Ranidae, Typical Frogs) are LaTouche's Frog (about 30%), Guenther's Frog (about 20%) and Olive Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Swinhoe's frog is recorded against all the amphibians logged in Taipei (280 verified sightings), 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.
