Andaman Nightjar vs Least Nighthawk
Caprimulgus andamanicus 比較対象 Chordeiles pusillus
Side-by-Side Comparison
| 属性 | Andaman Nightjar | Least Nighthawk |
|---|---|---|
| 学名 | Caprimulgus andamanicus | Chordeiles pusillus |
| 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) | 25.0 cm (9.8 in) |
| 体重 | 66.06666666666666 g (2.33 oz) | 29.733333333333334 g (1.05 oz) |
| 食性 | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Catches small flying insects in aerial pursuit over South American scrub and open areas; crepuscular. |
| 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
Least Nighthawk
High-pitched, buzzy trill; thin 'pee-pee-pee' series; soft churring from ground; tiny size matched by high, reedy call quality; rarely loud
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.
Least Nighthawk
Resident of open savanna and cerrado in interior South America from Venezuela and the Guianas south to Bolivia and central Brazil.
保全状況
Andaman Nightjar
Least Nighthawk
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 …
Least Nighthawk
Smallest Chordeiles; brown and buff mottled above; pale buff underparts with dark barring; small white throat patch in male; narrow white wing bar; white or buff tail spots. Female has …
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。
Least Nighthawk
リーストナイトホーク(Chordeiles pusillus)は南アメリカ内陸部に生息する小型のナイトホークです。ブラジル中部からアルゼンチン北部にかけて分布します。体長約16cmで、岩石地や砂地の開けた生息地を好みます。夕暮れ時に昆虫を捕食します。