Golden Nightjar vs Lesser Nighthawk
Caprimulgus eximius 比較対象 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Golden Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus eximius | 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 | 54.2 g (1.91 oz) | 50.0 g (1.76 oz) |
| 食性 | Nocturnal moth hawker; also takes beetles and winged termites in erratic aerial pursuits above dry … | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 一腹卵数 | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Golden Nightjar
Churring trill; repetitive 'chrrrr' from Sahel sandy scrub; calls at night from open terrain; alarm a sharp bark; poorly recorded for such a distinctive 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
Golden Nightjar
Found in the Sahel zone of West Africa from Mauritania and Senegal east to Niger and Chad. Resident in sandy semi-desert and open scrub.
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
Golden Nightjar
Lesser Nighthawk
How to Tell Them Apart
Golden Nightjar
Striking golden-ochre and black plumage; upperparts rich tawny-gold with bold black streaks; wings show large golden-buff spots on coverts; white throat and tail corners in males; uniquely warm coloration among …
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
Golden Nightjar
体長23cmの濃い黄金褐色と大胆な模様を持つ独特のヨタカ。サヘルからサハラ以南アフリカ北部に分布する。
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。