Palawan frogmouth vs Tawny Frogmouth
Batrachostomus chaseni 比較対象 Podargus strigoides
Side-by-Side Comparison
| 属性 | Palawan frogmouth | Tawny Frogmouth |
|---|---|---|
| 学名 | Batrachostomus chaseni | Podargus strigoides |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 45.8 cm (18.0 in) |
| 体重 | 40.0 g (1.41 oz) | 430.0 g (15.17 oz) |
| 食性 | Crepuscular hunter of large beetles and other insects; uses wide gape to engulf prey flushed … | Nocturnal ground-gleaning insectivore; drops from a perch onto large insects, frogs, and small lizards below. |
| 一腹卵数 | 1-2 | 1-5 |
| 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
Tawny Frogmouth
Resonant, repeated 'oom-oom-oom'; low booming hoot; soft and melodious for such a large bird; calls at night from Australian eucalypt forest; alarm a harsh 'grr'
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.
Tawny Frogmouth
Found throughout Australia including Tasmania. Resident in woodland, forest edge, and suburban areas. Widespread and common across the continent.
保全状況
Palawan frogmouth
Tawny 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.
Tawny Frogmouth
Cryptic silver-grey upperparts with black shaft streaks; underparts paler grey with dark streaking; females often more rufous-tawny morph; vivid yellow eyes; heavy hooked bill; famous for bark-mimicking upright posture when …
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。
Tawny Frogmouth
A large, stocky frogmouth (34-53 cm) endemic to Australia, widespread across the continent. Silvery-grey mottled plumage provides superb camouflage against tree bark. Nocturnal insectivore pouncing on prey from perches. Australia's most commonly encountered nocturnal bird.