Salvadori's Nightjar vs Lesser Nighthawk
Caprimulgus pulchellus 比較対象 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Salvadori's Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus pulchellus | Chordeiles acutipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.8 cm (12.1 in) | 33.0 cm (13.0 in) |
| 体重 | 57.5 g (2.03 oz) | 50.0 g (1.76 oz) |
| 食性 | -- | 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
Salvadori's Nightjar
Churring trill; repetitive 'chrrr' from Sumatran highland forest; calls at night from mossy forest understory; moderate pitch; similar to but separable from Bornean species
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
Salvadori's Nightjar
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
Salvadori's Nightjar
Lesser Nighthawk
How to Tell Them Apart
Salvadori's Nightjar
Attractively patterned dark brown and buff upperparts; warm buff supercilium and throat patch; rufous-buff spotting on wing coverts; underparts barred buff; montane Sundaland endemic with relatively rich coloration.
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
Salvadori's Nightjar
体長24〜26cmのスマトラ・ジャワの山地林（標高1,000m以上）に生息する脆弱種のヨタカ。生息地の喪失が脅威。
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。