Blyth's Frogmouth vs Tawny Frogmouth
Batrachostomus affinis 比較対象 Podargus strigoides
Side-by-Side Comparison
| 属性 | Blyth's Frogmouth | Tawny Frogmouth |
|---|---|---|
| 学名 | Batrachostomus affinis | Podargus strigoides |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 45.8 cm (18.0 in) |
| 体重 | 47.8 g (1.69 oz) | 430.0 g (15.17 oz) |
| 食性 | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Nocturnal ground-gleaning insectivore; drops from a perch onto large insects, frogs, and small lizards below. |
| 一腹卵数 | 1-2 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blyth's Frogmouth
Soft, repeated hooting whistle; 'wooo' calls from lowland Indochina forest; gentle pitch; calls at night from dense undergrowth; closely related to Horsfield's Frogmouth
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
Blyth's Frogmouth
Found in the Thai-Malay Peninsula, Sumatra, and Borneo in lowland forest and peat swamp forest. Closely related to Horsfield's Frogmouth.
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
Blyth's Frogmouth
Tawny Frogmouth
How to Tell Them Apart
Blyth's Frogmouth
Males brown-grey with dark vermiculations and white scapular spots; females rufous-buff with spotted coverts; Sundaland frogmouth recently split from Horsfield's; differs in marginally warmer brown tone and distribution.
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
Blyth's Frogmouth
ミャンマーから東南アジア本土を経てボルネオにかけての低地林に生息する中型のガマグチヨタカ（23〜25cm）。淡い首輪を持つ褐色の羽毛。夜行性の昆虫食者。ホースフィールドガマグチヨタカと近縁。原生林と二次林の下生えに生息する。
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.