Bornean Frogmouth vs Marbled Frogmouth
Batrachostomus mixtus 比較対象 Podargus ocellatus
Side-by-Side Comparison
| 属性 | Bornean Frogmouth | Marbled Frogmouth |
|---|---|---|
| 学名 | Batrachostomus mixtus | Podargus ocellatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 23.6 cm (9.3 in) | 35.2 cm (13.9 in) |
| 体重 | 46.3 g (1.63 oz) | 205.83333333333334 g (7.26 oz) |
| 食性 | Nocturnal perch-and-pounce predator feeding on large invertebrates, small frogs, and lizards on the forest floor. | Strictly nocturnal; takes large beetles, frogs, and lizards by silent perch-drop onto the forest floor. |
| 一腹卵数 | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Marbled Frogmouth
Loud 'oom-oom-oom' or bubbling cackle; resonant hollow hooting; calls from New Guinea forest at night; alarm a harsh hiss; repertoire includes soft cooing and chuckling
Geographic Range & Migration
Bornean Frogmouth
Endemic to the highlands of Borneo at 900–2,400 m. Found in montane forest on Mount Kinabalu and adjacent ranges. Rare.
Marbled Frogmouth
Found in New Guinea and Australia (Cape York Peninsula). Resident in tropical rainforest, vine thickets, and dense monsoon forest.
保全状況
Bornean Frogmouth
Marbled Frogmouth
How to Tell Them Apart
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.
Marbled Frogmouth
Intricately marbled chestnut-brown and black upperparts with pale buff ocellations; underparts pale buff barred dark brown; large yellow eyes; massive hooked bill; female averages more rufous-chestnut than grey-brown male.
About These Birds
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。
Marbled Frogmouth
A large frogmouth (38-50 cm) found in New Guinea and surrounding islands and northeast Australia. Mottled brown, black, and white plumage resembling tree bark. Nocturnal insectivore with a wide, hooked bill. Inhabits rainforest and forest edges.