Gould's Frogmouth vs Tawny Frogmouth
Batrachostomus stellatus 比較対象 Podargus strigoides
Side-by-Side Comparison
| 属性 | Gould's Frogmouth | Tawny Frogmouth |
|---|---|---|
| 学名 | Batrachostomus stellatus | Podargus strigoides |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 23.7 cm (9.3 in) | 45.8 cm (18.0 in) |
| 体重 | 52.05 g (1.84 oz) | 430.0 g (15.17 oz) |
| 食性 | Strictly nocturnal forager; catches large beetles, cockroaches, and centipedes by dropping silently to the forest … | Nocturnal ground-gleaning insectivore; drops from a perch onto large insects, frogs, and small lizards below. |
| 一腹卵数 | 1 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Gould's Frogmouth
High, melodic 'kee-kee-kee' whistle; thin and reedy for frogmouth; calls from Bornean lowland forest; higher-pitched than other frogmouths; rarely observed or recorded
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
Gould's Frogmouth
Found in the Thai-Malay Peninsula, Sumatra, and Borneo in lowland dipterocarp and peat swamp forest below 600 m. Uncommon.
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
Gould's Frogmouth
Tawny Frogmouth
How to Tell Them Apart
Gould's Frogmouth
Males pale grey-brown finely marked with dark vermiculations and starring white scapular spots; females rich cinnamon-rufous with white spotting; small Sundaland frogmouth with disproportionately bold scapular spots for its size.
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
Gould's Frogmouth
マレー半島・スマトラ・ボルネオの低地原生熱帯雨林に生息する中型のガマグチヨタカ（21〜25cm）。星を思わせる白い斑点で飾られた豊かな褐色の羽毛。夜行性の昆虫食者。低地の継続的な森林破壊により準絶滅危惧に分類。
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.