Large Frogmouth vs Bornean Frogmouth
Batrachostomus auritus 比較対象 Batrachostomus mixtus
Side-by-Side Comparison
| 属性 | Large Frogmouth | Bornean Frogmouth |
|---|---|---|
| 学名 | Batrachostomus auritus | Batrachostomus mixtus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.1 cm (20.5 in) | 23.6 cm (9.3 in) |
| 体重 | 206.0 g (7.27 oz) | 46.3 g (1.63 oz) |
| 食性 | Crepuscular and nocturnal; hunts large insects, spiders, and small vertebrates by dropping from perches to … | Nocturnal perch-and-pounce predator feeding on large invertebrates, small frogs, and lizards on the forest floor. |
| 一腹卵数 | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Large Frogmouth
Deep, resonant 'whooo' or mellow hooting; one of Asia's largest frogmouths; calls from Bornean lowland forest at night; soft ventriloquial quality; alarm a hiss
Bornean Frogmouth
Soft melodic hooting; 'too-too' whistle from Bornean hill forest; gentle and ventriloquial; calls at night from dense undergrowth; alarm a soft hissing exhalation
Geographic Range & Migration
Large Frogmouth
Found in the Thai-Malay Peninsula and Borneo in lowland and hill dipterocarp forest. Restricted to primary forest below 1,000 m. Scarce.
Bornean Frogmouth
Endemic to the highlands of Borneo at 900–2,400 m. Found in montane forest on Mount Kinabalu and adjacent ranges. Rare.
保全状況
Large Frogmouth
Bornean Frogmouth
How to Tell Them Apart
Large Frogmouth
Large Bornean frogmouth; males grey-brown with fine black vermiculations and white scapular spots; females rich chestnut-brown with white-spotted wing coverts; yellow eyes; prominent rictal bristles; largest of the Batrachostomus frogmouths.
Bornean Frogmouth
Males grey-brown finely vermiculated dark; white scapular spots; females rufous-chestnut with white-buff spotting; small Borneo endemic closely resembling Sumatran Frogmouth but greyer with less contrast between crown and back.
About These Birds
Large Frogmouth
ボルネオとマレー半島の低地熱帯雨林に生息する大型のガマグチヨタカ（38〜42cm）。白い耳房飾りを持つ豊かな褐色の羽毛。巨大な口裂を持つ夜行性の昆虫食者。アジア最大のガマグチヨタカで、大型昆虫と小型脊椎動物を食べる。
Bornean Frogmouth
ボルネオの山地固有の中型のガマグチヨタカ（23〜25cm）。暗褐色の羽毛を持つ。山地苔むした林の夜行性昆虫食者。ホースフィールドガマグチヨタカから最近分離独立。生態データが限られており、標高600m以上に限定される。