Blyth's Frogmouth vs Dulit Frogmouth
Batrachostomus affinis 比較対象 Batrachostomus harterti
Side-by-Side Comparison
| 属性 | Blyth's Frogmouth | Dulit Frogmouth |
|---|---|---|
| 学名 | Batrachostomus affinis | Batrachostomus harterti |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 48.4 cm (19.1 in) |
| 体重 | 47.8 g (1.69 oz) | 206.0 g (7.27 oz) |
| 食性 | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Nocturnal carnivore feeding on large beetles, worms, and small lizards; also takes moths in low … |
| 一腹卵数 | 1-2 | -- |
| 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
Dulit Frogmouth
Soft hooting whistle; mellow repeated 'hoo-hoo'; calls from Bornean montane forest; similar to Large Frogmouth but higher-pitched; rarely recorded; call easily missed
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.
Dulit Frogmouth
Endemic to the highlands of Borneo at 900–2,500 m. Found in montane forest on Gunung Dulit and other ranges in Sarawak and Sabah. Rare.
保全状況
Blyth's Frogmouth
Dulit 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.
Dulit Frogmouth
Males dark grey with black vermiculations and white-spotted scapulars; females deep rufous-chestnut with white-spotted coverts; Borneo montane endemic; strongly dimorphic with male grey and female rufous patterns contrasting sharply.
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。
Dulit Frogmouth
ボルネオ北部の山地林固有の中型のガマグチヨタカ（25〜27cm）。暗褐色の羽毛を持つ。夜行性の昆虫食者。最も希少で知られていないガマグチヨタカのひとつで、ごく少数の標本しか知られていない。生態と行動の情報が限られている。