Palawan frogmouth vs Dulit Frogmouth
Batrachostomus chaseni 比較対象 Batrachostomus harterti
Side-by-Side Comparison
| 属性 | Palawan frogmouth | Dulit Frogmouth |
|---|---|---|
| 学名 | Batrachostomus chaseni | Batrachostomus harterti |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 48.4 cm (19.1 in) |
| 体重 | 40.0 g (1.41 oz) | 206.0 g (7.27 oz) |
| 食性 | Crepuscular hunter of large beetles and other insects; uses wide gape to engulf prey flushed … | Nocturnal carnivore feeding on large beetles, worms, and small lizards; also takes moths in low … |
| 一腹卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Palawan frogmouth
High, thin melodic whistle; calls at night from Palawan island forest; poorly documented endemic; presumed similar to Philippine Frogmouth in vocal quality
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
Geographic Range & Migration
Palawan frogmouth
Endemic to Palawan Island in the western Philippines. Resident in lowland and hill forest up to 1,200 m. Rare; restricted to Palawan.
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.
保全状況
Palawan frogmouth
Dulit Frogmouth
How to Tell Them Apart
Palawan frogmouth
Males greyish-brown with fine dark vermiculations and white scapular spotting; females rufous with white-spotted wing coverts; Palawan Island endemic; plumage closely resembles Philippine Frogmouth but restricted to single island.
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.
About These Birds
Palawan frogmouth
フィリピンのパラワン島固有の中型のガマグチヨタカ。暗い赤褐色の羽毛を持つ。低地原生林の夜行性昆虫食者。最も知られていないガマグチヨタカのひとつ。フレデリック・チェイセンにちなんで命名。生態データが限られている。
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。