Palawan frogmouth vs Sunda Frogmouth
Batrachostomus chaseni 对比 Batrachostomus cornutus
Side-by-Side Comparison
| 属性 | Palawan frogmouth | Sunda Frogmouth |
|---|---|---|
| 学名 | Batrachostomus chaseni | Batrachostomus cornutus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 26.7 cm (10.5 in) |
| 体重 | 40.0 g (1.41 oz) | 46.3 g (1.63 oz) |
| 食性 | Crepuscular hunter of large beetles and other insects; uses wide gape to engulf prey flushed … | Nocturnal forager on large insects and small lizards; sallies from perches to ground in dense … |
| 产卵数 | 1-2 | 1 |
| 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
Sunda Frogmouth
Soft 'koo-koo' or melodic hooting; moderate pitch; calls from Sundaic lowland forest at night; pairs duet with answering calls; alarm a sharp hiss; ventriloquial quality
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.
Sunda Frogmouth
Found on Borneo, Sumatra, and adjacent small islands in lowland and hill rainforest below 1,000 m. Uncommon primary forest resident.
保护状况
Palawan frogmouth
Sunda 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.
Sunda Frogmouth
Males brown-grey finely stippled with black and bearing white scapular spots; small white feather tufts above eye form horn-like projections; females rufous-chestnut with white spots; Sundaic species uniquely decorated with …
About These Birds
Palawan frogmouth
A medium-sized frogmouth endemic to the island of Palawan in the Philippines. Dark rufous-brown plumage. Nocturnal insectivore of lowland primary forest. One of the least known frogmouths. Named after Frederick Chasen. Limited ecological data available.
Sunda Frogmouth
A medium-sized frogmouth (23-28 cm) found in lowland rainforests of Borneo, Sumatra, and Java. Dark brown plumage with small ear-tufts. Nocturnal insectivore of forest interior. Distinguished from other Asian frogmouths by its horn-like feather tufts above the eyes.