Blyth's Frogmouth vs Sunda Frogmouth
Batrachostomus affinis 比較対象 Batrachostomus cornutus
Side-by-Side Comparison
| 属性 | Blyth's Frogmouth | Sunda Frogmouth |
|---|---|---|
| 学名 | Batrachostomus affinis | Batrachostomus cornutus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 26.7 cm (10.5 in) |
| 体重 | 47.8 g (1.69 oz) | 46.3 g (1.63 oz) |
| 食性 | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Nocturnal forager on large insects and small lizards; sallies from perches to ground in dense … |
| 一腹卵数 | 1-2 | 1 |
| 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
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
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.
Sunda Frogmouth
Found on Borneo, Sumatra, and adjacent small islands in lowland and hill rainforest below 1,000 m. Uncommon primary forest resident.
保全状況
Blyth's Frogmouth
Sunda 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.
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 …
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。
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。