Limnodynastes convexiusculus
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~50%
The marbled frog or marbled marsh frog (Limnodynastes convexiusculus) is a species of ground-dwelling frog native to northern and north-eastern Australia, and southern New Guinea in both Indonesia and Papua New Guinea. It should not be confused with the spotted grass frog (Limnodynastes tasmaniensis), which was also formerly known as the "marbled frog" in South Australia.
Adult marbled frogs reach about 4.5 centimetres (1.8 in) in length, sometimes larger. Toes are long and unwebbed. Grey to light brown on back with numerous prominent darker blotches. The belly is white. Males have a yellowish throat and numerous small sharp black spines on their backs. When disturbed their skin excretes large amounts of mucus.
The marbled frog tends to be solitary inhabiting thick ground vegetation and is more often heard than seen. Males often call from hidden sites, usually partly submerged beneath vegetation. Its call has been described as "a rapid series of uk uk uks". Eggs are laid in a floating foam nest under vegetation and are small and brown. Tadpoles reach 7 centimetres (2.8 in) in length.
The marbled frog inhabits waterholes and pools in open... Wikipedia →
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kakadu National Park | 🇦🇺 Australia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Marbled Frog sighting in Kakadu National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 11th most-seen of the 12 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
January
In that month about 40% of wildlife watchers report a Marbled Frog in Kakadu National Park on a given day, against under 5% in February–May, July and September–November, the lowest months. That is one of Kakadu National Park's wettest months, with about 350 mm of rain against almost none in August.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Marbled Frog 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 Kakadu National Park, in our data
Kakadu National Park is the only park on Wallace's Line with enough records to rate Marbled Frog sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Marbled Frog is recorded against all the amphibians logged in Kakadu National Park (12 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.
