Andaman Nightjar vs Swallow-tailed Nightjar
Caprimulgus andamanicus 比較対象 Uropsalis segmentata
Side-by-Side Comparison
| 属性 | Andaman Nightjar | Swallow-tailed Nightjar |
|---|---|---|
| 学名 | Caprimulgus andamanicus | Uropsalis segmentata |
| 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) | 32.6 cm (12.8 in) |
| 体重 | 66.06666666666666 g (2.33 oz) | 42.25000000000001 g (1.49 oz) |
| 食性 | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Nocturnal aerial insectivore; catches moths and beetles over Andean montane forest and scrub. |
| 一腹卵数 | 1-2 | 1 |
| 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
Swallow-tailed Nightjar
High, thin churring whistle; reedy 'tsee-tsee' series; calls from Andean forest understory; males conspicuous in display flight; female call softer and shorter
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.
Swallow-tailed Nightjar
Resident of Andean forest edge and open slopes from Colombia and Venezuela south through Ecuador and Peru to Bolivia, at 1,500–3,500 m.
保全状況
Andaman Nightjar
Swallow-tailed 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 …
Swallow-tailed Nightjar
Male dark brown with buff and rufous mottling; extraordinarily forked tail with outer feathers extending to 18 cm beyond inner; white throat patch. Female brown and buff mottled without elongated …
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。
Swallow-tailed Nightjar
A small Caprimulgidae nightjar (~42 g) of Andean montane forest edges and paramo from Colombia to Bolivia. Males possess a deeply forked swallow-like tail exceeding body length. Inhabits forest clearings and shrubby paramo. Feeds on moths and beetles at dusk. Least Concern in its montane Andean habitat.