Blyth's Frogmouth vs Sumatran Frogmouth
Batrachostomus affinis verglichen mit Batrachostomus poliolophus
Side-by-Side Comparison
| Merkmal | Blyth's Frogmouth | Sumatran Frogmouth |
|---|---|---|
| Wissenschaftlicher Name | Batrachostomus affinis | Batrachostomus poliolophus |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Podargidae | Podargidae |
| Erhaltungsstatus | Not Evaluated | Least Concern |
| Länge | — | — |
| Flügelspannweite | — | 24,1 cm (9.5 in) |
| Gewicht | 47,8 g (1.69 oz) | 46,3 g (1.63 oz) |
| Ernährung | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Night hunter detecting prey by sound; takes large beetles, frogs, and lizards in swift pouncing … |
| Gelegegröße | 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
Sumatran Frogmouth
High melodic whistle; 'kee-wii' repeated softly at night; Sumatran highland forest endemic; rarely recorded; higher-pitched than lowland frogmouths; pairs call together
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.
Sumatran Frogmouth
Endemic to the highlands of Sumatra at 800–2,000 m. Found in submontane and montane rainforest. Rare and seldom recorded.
Erhaltungsstatus
Blyth's Frogmouth
Sumatran 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.
Sumatran Frogmouth
Males grey with fine black stippling and white scapular row; pale grey crown slightly paler than back; females rufous-cinnamon with white-spotted coverts; Sumatran endemic with noticeably pale grey crown distinguishing …
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.
Sumatran Frogmouth
A medium-sized frogmouth (23-26 cm) endemic to montane forests of Sumatra, Indonesia, above 900 m elevation. Rufous-brown plumage with fine whitish markings. Nocturnal insectivore of dense undergrowth. Poorly known; classified as Near Threatened due to forest loss.