Blyth's Frogmouth vs Sunda Frogmouth
Batrachostomus affinis compared with Batrachostomus cornutus
Side-by-Side Comparison
| Attribute | Blyth's Frogmouth | Sunda Frogmouth |
|---|---|---|
| Scientific Name | Batrachostomus affinis | Batrachostomus cornutus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Podargidae | Podargidae |
| Conservation Status | Not Evaluated | Least Concern |
| Length | — | — |
| Wingspan | — | 26.7 cm (10.5 in) |
| Weight | 47.8 g (1.69 oz) | 46.3 g (1.63 oz) |
| Diet | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Nocturnal forager on large insects and small lizards; sallies from perches to ground in dense … |
| Clutch Size | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blyth's Frogmouth
Soft, repeated hooting whistle; 'wooo' calls from lowland Indochina forest; gentle pitch; calls at night from dense undergrowth; closely related to Horsfield's Frogmouth
Sunda Frogmouth
Soft 'koo-koo' or melodic hooting; moderate pitch; calls from Sundaic lowland forest at night; pairs duet with answering calls; alarm a sharp hiss; ventriloquial quality
Geographic Range & Migration
Blyth's Frogmouth
Found in the Thai-Malay Peninsula, Sumatra, and Borneo in lowland forest and peat swamp forest. Closely related to Horsfield's Frogmouth.
Sunda Frogmouth
Found on Borneo, Sumatra, and adjacent small islands in lowland and hill rainforest below 1,000 m. Uncommon primary forest resident.
Conservation Status
Blyth's Frogmouth
Sunda Frogmouth
How to Tell Them Apart
Blyth's Frogmouth
Males brown-grey with dark vermiculations and white scapular spots; females rufous-buff with spotted coverts; Sundaland frogmouth recently split from Horsfield's; differs in marginally warmer brown tone and distribution.
Sunda Frogmouth
Males brown-grey finely stippled with black and bearing white scapular spots; small white feather tufts above eye form horn-like projections; females rufous-chestnut with white spots; Sundaic species uniquely decorated with …
About These Birds
Blyth's Frogmouth
A medium-sized frogmouth (23-25 cm) found in lowland forests from Myanmar through mainland Southeast Asia to Borneo. Brown plumage with pale collar. Nocturnal insectivore. Closely related to Horsfield's Frogmouth. Inhabits primary and secondary forest undergrowth.
Sunda Frogmouth
A medium-sized frogmouth (23-28 cm) found in lowland rainforests of Borneo, Sumatra, and Java. Dark brown plumage with small ear-tufts. Nocturnal insectivore of forest interior. Distinguished from other Asian frogmouths by its horn-like feather tufts above the eyes.