Sunda Frogmouth vs Horsfield's Frogmouth
Batrachostomus cornutus 比較対象 Batrachostomus javensis
Side-by-Side Comparison
| 属性 | Sunda Frogmouth | Horsfield's Frogmouth |
|---|---|---|
| 学名 | Batrachostomus cornutus | Batrachostomus javensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 26.7 cm (10.5 in) | 22.2 cm (8.7 in) |
| 体重 | 46.3 g (1.63 oz) | 46.333333333333336 g (1.63 oz) |
| 食性 | Nocturnal forager on large insects and small lizards; sallies from perches to ground in dense … | Feeds nocturnally on large beetles, millipedes, and worms; occasionally takes small lizards by ground-pouncing. |
| 一腹卵数 | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Horsfield's Frogmouth
Melodic 'choo-choo-choo' or plaintive whistle; repeated soft notes; calls from Javan and Philippine forest at night; pitch moderate; pairs often answer each other
Geographic Range & Migration
Sunda Frogmouth
Found on Borneo, Sumatra, and adjacent small islands in lowland and hill rainforest below 1,000 m. Uncommon primary forest resident.
Horsfield's Frogmouth
Found from the Thai-Malay Peninsula through Sumatra, Java, and Borneo to the Philippines. Resident in lowland and hill forest below 1,000 m.
保全状況
Sunda Frogmouth
Horsfield's Frogmouth
How to Tell Them Apart
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 …
Horsfield's Frogmouth
Males grey-brown with black freckling and white scapular spots; females warm tawny-rufous with bold white-spotted wing coverts; smallest of the Southeast Asian frogmouths; Javan endemic with finely patterned cryptic plumage.
About These Birds
Sunda Frogmouth
ボルネオ・スマトラ・ジャワの低地熱帯雨林に生息する中型のガマグチヨタカ（23〜28cm）。小さな耳房飾りを持つ暗褐色の羽毛。林内の夜行性昆虫食者。目の上の角のような羽房飾りで他のアジアのガマグチヨタカと識別できる。
Horsfield's Frogmouth
マレー半島・スマトラ・ジャワ・ボルネオの低地と山麓の林に生息する中型のガマグチヨタカ（21〜25cm）。赤褐色の胸帯を持つ暗褐色の羽毛。密な林下生えの夜行性昆虫食者。特徴的な口笛のような鳴き声で発見されることが多い。