Olive Frog

Olive Frog

Nidirana adenopleura

Silhouette: Michael Scroggie, from original photograph by John Bettaso, USFWS (original photograph in public domain). · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~20% · Possible
at Taipei

In 3 days ~40% in a week ~70%

197 Verified sightings at Taipei
August Best month
🌅 Crepuscular When it's spotted

About the Olive Frog

Nidirana adenopleura is a species of frog in the family Ranidae. It is found in Taiwan, south-eastern China, and in the Yaeyama Islands (Ryukyu Islands, Japan). Populations from Yaeyama Islands might represent a distinct, as yet undescribed species. The records from Vietnam and Thailand are uncertain.

Nidirana adenopleura is a medium-sized frog growing to 4.5 centimetres (1.8 in) snout-vent length. Upper surfaces are light brown to brownish green; the underside is whitish. There is a light golden brown line running from the tip of nostril backward through the upper eyelid and along the dorsolateral fold to the hip. The upper jaw has a yellow stripe. The sides of the body are light brown to grayish brown, with some dark markings. The iris is golden above and reddish golden below.

Reproductive season is from March to September. Males have a loud advertisement call and start calling after sunset, and may keep on calling whole night, even continuing after sunrise. Females lay eggs near pond margins.

Nidirana adenopleura's natural habitats are paddy fields, marshes, ditches, ponds, and lakes with abundant submerged vegetation at low elevations... Wikipedia →

Sounds

Recording0:08

Taiwan · 2024

© tttoad · iNaturalist · CC BY-NC 4.0

Recording0:06

Taiwan · 2024

© W Rao · iNaturalist · CC BY 4.0

Recording0:15

Taiwan · 2025

© 歐陽秀華 · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Taipei 🇹🇼 Taiwan
~20%

Before you go

What are the chances of seeing an Olive Frog in Taipei?

Possible

About 20% of wildlife watchers report an Olive Frog sighting in Taipei on a given day, based on 197 verified sightings from GBIF citizen-science data. It is the 10th most-seen of the 18 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.

When is the best time to see an Olive Frog in Taipei?

August

In that month about 30% of wildlife watchers report an Olive Frog in Taipei on a given day, against under 5% in January and February, the lowest months. That is one of Taipei's wettest months, with about 260 mm of rain against 90 mm in February.

What time of day is best to see an Olive Frog?

Between 7 and 10 pm

Across all the parks we cover, that three-hour window holds the most Olive Frog sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.

Where else can you see an Olive Frog?

Only Taipei, in our data

Taipei is the only city on Wallace's Line with enough records to rate Olive Frog sightings: about 20% of wildlife watchers there report one on a given day.

Which relatives of the Olive Frog live in Taipei?

Same family: Ranidae

The closest relatives of the Olive Frog that you can see in Taipei (family Ranidae, Typical Frogs) are LaTouche's Frog (about 30%), Guenther's Frog (about 20%) and Swinhoe's frog (about 20%), with each one's daily chance of a sighting.

Where does the Olive Frog sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Olive Frog is recorded against all the amphibians logged in Taipei (197 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.

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