Batrachostomus cornutus
Silhouette: Matt Wilkins · PhyloPic
In 3 days ~80% in a week >90%
The Sunda frogmouth (Batrachostomus cornutus) is a medium-sized, old world species of bird within the order Podargiformes. It is also uncommonly referred to as the long-tailed frogmouth or the horned frogmouth. The term "Sunda" is based on the geographical range of the species to regions around the Sunda islands. The genus name, Batrachostomus, is a Greek translation to 'frogmouth', which comes from the wide shape of the bill and slight gape. The species name cornutus is a Latin word translated to "having horns", referring to the tufts of feathers on the head.
The Sunda frogmouth is found within the clade Strisores, which refers to nightbirds. It was previously grouped with order Caprimulgiformes which has a long history of classifications under different taxa. Hartert in 1892 classified Caprimulgiformes with Picariae which at the time included hoopoes, hummingbirds and swifts. Frogmouths were then classified with Coraciiformes by Gadow in 1892 and Sharpe in 1900 which included owls, swifts, hummingbirds, trogons, and rolers. The most recent classification of Caprimulgiformes were within Strigiformes (owls) by Sibley and Ahlquist in 1990. In the early 2000s, Caprimulgiformes... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 2 | Danum Valley Conservation Area | 🇲🇾 Malaysia |
Likely
About 50% of wildlife watchers report a Sunda Frogmouth sighting in Way Kambas National Park on a given day, based on 135 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 205 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July
In that month about 60% of wildlife watchers report a Sunda Frogmouth in Way Kambas National Park on a given day, against about 30% in March–April and June, the lowest months. That is one of Way Kambas National Park's driest months, with about 120 mm of rain against 370 mm in March. November to February have too few records to rate.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Sunda Frogmouth 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.
Yes
Of the 2 parks where we can rate Sunda Frogmouth sightings, Way Kambas National Park has the highest daily chance: about 50%. Next come Danum Valley Conservation Area (Malaysia, under 5%).
Same genus: Batrachostomus
The closest relatives of the Sunda Frogmouth that you can see in Way Kambas National Park (genus Batrachostomus, Asian Frogmouths) are Large Frogmouth (about 30%) and Gould's Frogmouth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sunda Frogmouth is recorded against all the birds logged in Way Kambas National Park (135 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.
