Bornean Frogmouth vs Sumatran Frogmouth
Batrachostomus mixtus comparé à Batrachostomus poliolophus
Side-by-Side Comparison
| Attribut | Bornean Frogmouth | Sumatran Frogmouth |
|---|---|---|
| Nom scientifique | Batrachostomus mixtus | Batrachostomus poliolophus |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Podargidae | Podargidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 23,6 cm (9.3 in) | 24,1 cm (9.5 in) |
| Poids | 46,3 g (1.63 oz) | 46,3 g (1.63 oz) |
| Régime alimentaire | Nocturnal perch-and-pounce predator feeding on large invertebrates, small frogs, and lizards on the forest floor. | Night hunter detecting prey by sound; takes large beetles, frogs, and lizards in swift pouncing … |
| Taille de la couvée | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
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
Bornean Frogmouth
Endemic to the highlands of Borneo at 900–2,400 m. Found in montane forest on Mount Kinabalu and adjacent ranges. Rare.
Sumatran Frogmouth
Endemic to the highlands of Sumatra at 800–2,000 m. Found in submontane and montane rainforest. Rare and seldom recorded.
Statut de conservation
Bornean Frogmouth
Sumatran Frogmouth
How to Tell Them Apart
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.
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
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.
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.