Andaman Nightjar vs Montane Nightjar
Caprimulgus andamanicus 比較対象 Caprimulgus poliocephalus
Side-by-Side Comparison
| 属性 | Andaman Nightjar | Montane Nightjar |
|---|---|---|
| 学名 | Caprimulgus andamanicus | Caprimulgus poliocephalus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 36.4 cm (14.3 in) | 31.1 cm (12.2 in) |
| 体重 | 66.06666666666666 g (2.33 oz) | 47.050000000000004 g (1.66 oz) |
| 食性 | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Nighttime aerial insectivore; moths and beetles are primary prey, caught by hawking over forest clearings. |
| 一腹卵数 | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Andaman Nightjar
Loud 'chuck-chuck-trrr'; hollow knocking prefix followed by trill; endemic to Andaman Islands; calls at night from forest edges and clearings; similar to Large-tailed
Montane Nightjar
Churring trill from East African highlands; repetitive 'churr-churr-churr'; slightly higher pitched than lowland species; calls from highland scrub and forest edge
Geographic Range & Migration
Andaman Nightjar
Endemic to the Philippines including Luzon and Mindanao. Resident in lowland and submontane forest and forest edge up to 1,800 m.
Montane Nightjar
Found across the Indian subcontinent from Pakistan and Nepal south to Sri Lanka. Common in open scrub, rocky hillsides, and dry woodland.
保全状況
Andaman Nightjar
Montane Nightjar
How to Tell Them Apart
Andaman Nightjar
Warm rufous-brown upperparts with black-centred scapulars and pale buff streaks; broad white throat patch; males show white outer tail feathers; underparts buff barred brown; endemic island coloration slightly warmer than …
Montane Nightjar
Grey-brown upperparts with fine blackish streaks; pale grey head contrasting slightly with browner back; white throat patch; underparts buff barred brown; inhabits high-altitude montane zones in East Africa.
About These Birds
Andaman Nightjar
体長24〜26cmのアンダマン諸島固有のヨタカ。暗褐色で赤褐色の首輪がある。
Montane Nightjar
体長23〜24cmの東・南アフリカのエチオピアから南アフリカの山地林・高標高地（1,500m以上）に生息するヨタカ。