Jungle Nightjar vs Lesser Nighthawk
Caprimulgus indicus 比較対象 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Jungle Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus indicus | Chordeiles acutipennis |
| 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) | 33.0 cm (13.0 in) |
| 体重 | 84.0 g (2.96 oz) | 50.0 g (1.76 oz) |
| 食性 | Nocturnal aerial insectivore; catches moths, beetles, and flying insects over South and SE Asian forest. | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Jungle Nightjar
Loud churring 'chuck-chuck-chuck-rrr'; repetitive with accelerating quality; calls from South Asian forest at dusk; hollow resonant tone; alarm a sharp 'chuck'
Lesser Nighthawk
Loud purring trill; buzzy 'brrrrr' given in flight; lower and softer than Common Nighthawk; males display with booming wingbeats; calls at dusk over deserts
Geographic Range & Migration
Jungle Nightjar
Breeds in eastern Asia (India, China, Korea, Japan) south to Southeast Asia; northern populations winter in tropical Southeast Asia.
Lesser Nighthawk
Breeds in open arid scrub from southwestern USA south through Central America to western South America; winters in Mexico and northern South America.
保全状況
Jungle Nightjar
Lesser Nighthawk
How to Tell Them Apart
Jungle Nightjar
Brown and grey mottled with dark vermiculations; white throat patch; white wing spots across primaries; white outer tail spots in male; buff throat and tail spots in female; pale supercilium …
Lesser Nighthawk
Brown and buff mottled above; buff-white below with brown barring; white throat in male; white wing bar closer to wingtip than in Common Nighthawk; buff tail band. Female with buff …
About These Birds
Jungle Nightjar
体重約84gのインドから日本の森林縁に生息するヨタカ。灰褐色のバフ色で隠蔽色が高く、部分的に渡りを行う。
Lesser Nighthawk
ヒメナイトホーク(Chordeiles acutipennis)は北アメリカ南西部からブラジルにかけて広く分布するナイトホークです。体長約20cmで、細長い翼と独特の飛行パターンが特徴です。薄明時に昆虫を捕食し、砂地や岩石地の地面に営巣します。