Glyphoglossus molossus
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~40%
Glyphoglossus molossus is a species of frog in the family Microhylidae. Its common names include blunt-headed burrowing frog and balloon frog. Glyphoglossus molossus is found in Cambodia, Laos, Myanmar, Thailand, and Vietnam.
Its natural habitat is subtropical or tropical seasonal forests, moist savanna, intermittent freshwater marshes, rural gardens, temporary ponds, and heavily degraded former forest. These large, burrowing frogs follow the general theme of microhylids that deposit aquatic eggs over and over. There is explosive breeding activity in ephemeral water sources such as ponds and ditches. The frogs perform multiple symplectic dips to oviposit the surface films of pigmented eggs. A portion of a clutch is released with each dip, with a dip lasting for about 6 seconds. 200–300 eggs are released per dip. The ova have a dark black animal pole and a yellow vegetal pole. Tadpoles feed by filtering suspended material in the water column.
Glyphoglossus molossus is threatened by over-harvesting (see below) and habitat loss. In certain areas, this frog is collected in large numbers as food during the breeding... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Sagamigawa Fureai Science Museum | 🇯🇵 Japan |
With luck
About 10% of wildlife watchers report a Blunt-headed Burrowing Frog sighting in Kaeng Krachan National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 21 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report a Blunt-headed Burrowing Frog in Kaeng Krachan National Park on a given day, against under 5% in March, June–October and December–January, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Blunt-headed Burrowing Frog sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Kaeng Krachan National Park, in our data
Kaeng Krachan National Park is the only park on Wallace's Line with enough records to rate Blunt-headed Burrowing 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 Blunt-headed Burrowing Frog is recorded against all the amphibians logged in Kaeng Krachan National Park (10 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.
