Large Frogmouth vs Bornean Frogmouth
Batrachostomus auritus compared with Batrachostomus mixtus
Side-by-Side Comparison
| Attribute | Large Frogmouth | Bornean Frogmouth |
|---|---|---|
| Scientific Name | Batrachostomus auritus | Batrachostomus mixtus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Podargidae | Podargidae |
| Conservation Status | Vulnerable | Least Concern |
| Length | — | — |
| Wingspan | 52.1 cm (20.5 in) | 23.6 cm (9.3 in) |
| Weight | 206.0 g (7.27 oz) | 46.3 g (1.63 oz) |
| Diet | Crepuscular and nocturnal; hunts large insects, spiders, and small vertebrates by dropping from perches to … | Nocturnal perch-and-pounce predator feeding on large invertebrates, small frogs, and lizards on the forest floor. |
| Clutch Size | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Large Frogmouth
Deep, resonant 'whooo' or mellow hooting; one of Asia's largest frogmouths; calls from Bornean lowland forest at night; soft ventriloquial quality; alarm a hiss
Bornean Frogmouth
Soft melodic hooting; 'too-too' whistle from Bornean hill forest; gentle and ventriloquial; calls at night from dense undergrowth; alarm a soft hissing exhalation
Geographic Range & Migration
Large Frogmouth
Found in the Thai-Malay Peninsula and Borneo in lowland and hill dipterocarp forest. Restricted to primary forest below 1,000 m. Scarce.
Bornean Frogmouth
Endemic to the highlands of Borneo at 900–2,400 m. Found in montane forest on Mount Kinabalu and adjacent ranges. Rare.
Conservation Status
Large Frogmouth
Bornean Frogmouth
How to Tell Them Apart
Large Frogmouth
Large Bornean frogmouth; males grey-brown with fine black vermiculations and white scapular spots; females rich chestnut-brown with white-spotted wing coverts; yellow eyes; prominent rictal bristles; largest of the Batrachostomus frogmouths.
Bornean Frogmouth
Males grey-brown finely vermiculated dark; white scapular spots; females rufous-chestnut with white-buff spotting; small Borneo endemic closely resembling Sumatran Frogmouth but greyer with less contrast between crown and back.
About These Birds
Large Frogmouth
A large frogmouth (38-42 cm) of lowland rainforests in Borneo and the Malay Peninsula. Rich brown plumage with white ear-tufts. Nocturnal insectivore with an enormous gape. The largest Asian frogmouth, feeding on large insects and small vertebrates.
Bornean Frogmouth
A medium-sized frogmouth (23-25 cm) endemic to the mountains of Borneo. Dark brown plumage. Nocturnal insectivore of montane moss forest. Recently split from Horsfield's Frogmouth. Limited ecological data; restricted to elevations above 600 m.