Long-tailed Nightjar vs Lesser Nighthawk
Caprimulgus climacurus 比較対象 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Long-tailed Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus climacurus | Chordeiles acutipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 28.6 cm (11.3 in) | 33.0 cm (13.0 in) |
| 体重 | 48.333333333333336 g (1.70 oz) | 50.0 g (1.76 oz) |
| 食性 | Crepuscular to nocturnal; feeds predominantly on moths and flying beetles, hawked in open flight near … | 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
Long-tailed Nightjar
Churring trill with hollow 'cuck' notes; 'cuck-churr-cuck' pattern; calls from West African woodland at night; alarm a sharp bark; persistent caller in dry season
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
Long-tailed Nightjar
Found in East Africa from Ethiopia south to Kenya and Tanzania. Resident in open bushland. Male has elongated outer tail feathers with bare shafts.
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
Long-tailed Nightjar
Lesser Nighthawk
How to Tell Them Apart
Long-tailed Nightjar
Brown and black cryptic upperparts; white throat patch; males sport extremely elongated central tail feathers twice body length with bare white rachis; females much shorter-tailed; West African savanna specialist.
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
Long-tailed Nightjar
体長21〜28cmのサハラ以南アフリカに生息するヨタカ。繁殖期の雄は著しく長い尾羽を持つ。
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。