Dulit Frogmouth vs Sumatran Frogmouth
Batrachostomus harterti 比較対象 Batrachostomus poliolophus
Side-by-Side Comparison
| 属性 | Dulit Frogmouth | Sumatran Frogmouth |
|---|---|---|
| 学名 | Batrachostomus harterti | Batrachostomus poliolophus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 48.4 cm (19.1 in) | 24.1 cm (9.5 in) |
| 体重 | 206.0 g (7.27 oz) | 46.3 g (1.63 oz) |
| 食性 | 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 … |
| 一腹卵数 | -- | 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.
保全状況
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
ボルネオ北部の山地林固有の中型のガマグチヨタカ（25〜27cm）。暗褐色の羽毛を持つ。夜行性の昆虫食者。最も希少で知られていないガマグチヨタカのひとつで、ごく少数の標本しか知られていない。生態と行動の情報が限られている。
Sumatran Frogmouth
インドネシア、スマトラの標高900m以上の山地林固有の中型のガマグチヨタカ（23〜26cm）。細かい白みがかった模様を持つ赤褐色の羽毛。密な下生えの夜行性昆虫食者。知見が乏しく；森林喪失により準絶滅危惧に分類。