Dulit Frogmouth vs Gould's Frogmouth
Batrachostomus harterti compared with Batrachostomus stellatus
Side-by-Side Comparison
| Attribute | Dulit Frogmouth | Gould's Frogmouth |
|---|---|---|
| Scientific Name | Batrachostomus harterti | Batrachostomus stellatus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Podargidae | Podargidae |
| Conservation Status | Least Concern | Near Threatened |
| Length | — | — |
| Wingspan | 48.4 cm (19.1 in) | 23.7 cm (9.3 in) |
| Weight | 206.0 g (7.27 oz) | 52.05 g (1.84 oz) |
| Diet | Nocturnal carnivore feeding on large beetles, worms, and small lizards; also takes moths in low … | Strictly nocturnal forager; catches large beetles, cockroaches, and centipedes by dropping silently to the forest … |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Dulit Frogmouth
Soft hooting whistle; mellow repeated 'hoo-hoo'; calls from Bornean montane forest; similar to Large Frogmouth but higher-pitched; rarely recorded; call easily missed
Gould's Frogmouth
High, melodic 'kee-kee-kee' whistle; thin and reedy for frogmouth; calls from Bornean lowland forest; higher-pitched than other frogmouths; rarely observed or recorded
Geographic Range & Migration
Dulit Frogmouth
Endemic to the highlands of Borneo at 900–2,500 m. Found in montane forest on Gunung Dulit and other ranges in Sarawak and Sabah. Rare.
Gould's Frogmouth
Found in the Thai-Malay Peninsula, Sumatra, and Borneo in lowland dipterocarp and peat swamp forest below 600 m. Uncommon.
Conservation Status
Dulit Frogmouth
Gould's Frogmouth
How to Tell Them Apart
Dulit Frogmouth
Males dark grey with black vermiculations and white-spotted scapulars; females deep rufous-chestnut with white-spotted coverts; Borneo montane endemic; strongly dimorphic with male grey and female rufous patterns contrasting sharply.
Gould's Frogmouth
Males pale grey-brown finely marked with dark vermiculations and starring white scapular spots; females rich cinnamon-rufous with white spotting; small Sundaland frogmouth with disproportionately bold scapular spots for its size.
About These Birds
Dulit Frogmouth
A medium-sized frogmouth (25-27 cm) endemic to montane forests of northern Borneo. Dark brown plumage. Nocturnal insectivore. One of the rarest and least known frogmouths, known from very few specimens. Limited information on ecology and behavior.
Gould's Frogmouth
A medium-sized frogmouth (21-25 cm) of lowland primary rainforest in the Malay Peninsula, Sumatra, and Borneo. Rich brown plumage spangled with white spots resembling stars. Nocturnal insectivore. Classified as Near Threatened due to ongoing lowland deforestation.