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Rana zhenhaiensis
In 3 days ~50% in a week ~80%
The Zhenhai brown frog (Rana zhenhaiensis) is a species of frog in the family Ranidae endemic to China. Its natural habitats are subtropical or tropical moist lowland forests, montane forests, dry lowland grasslands, intermittent freshwater marshes, ponds, and irrigated land. It is not considered threatened by the IUCN. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Zhenhai Brown Frog sighting in Hangzhou on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 13 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.
June to September
In those months about 30% of wildlife watchers report a Zhenhai Brown Frog in Hangzhou on a given day, against under 5% in January, March and October, the lowest months. Those are among Hangzhou's wettest months, with about 180 mm of rain a month against 65 mm in December.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Zhenhai Brown Frog sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 3 cities where we can rate Zhenhai Brown Frog sightings, Hangzhou ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Nanjing (China, about 20%).
Same family: Ranidae
The closest relatives of the Zhenhai Brown Frog that you can see in Hangzhou (family Ranidae, Typical Frogs) are LaTouche's Frog (about 20%), Black-spotted Frog (about 20%) and Mangven Chang's Music Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Zhenhai Brown Frog is recorded against all the amphibians logged in Hangzhou (29 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.
