Dulit Frogmouth vs Sumatran Frogmouth
Batrachostomus harterti comparé à Batrachostomus poliolophus
Side-by-Side Comparison
| Attribut | Dulit Frogmouth | Sumatran Frogmouth |
|---|---|---|
| Nom scientifique | Batrachostomus harterti | Batrachostomus poliolophus |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Podargidae | Podargidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 48,4 cm (19.1 in) | 24,1 cm (9.5 in) |
| Poids | 206,0 g (7.27 oz) | 46,3 g (1.63 oz) |
| Régime alimentaire | Nocturnal carnivore feeding on large beetles, worms, and small lizards; also takes moths in low … | 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
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
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
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.
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
Dulit Frogmouth
Sumatran 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.
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
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.
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.