European Nightjar vs Lesser Nighthawk
Caprimulgus europaeus 对比 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | European Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus europaeus | Chordeiles acutipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.6 cm (14.4 in) | 33.0 cm (13.0 in) |
| 体重 | 75.83333333333333 g (2.67 oz) | 50.0 g (1.76 oz) |
| 食性 | Hawks moths, beetles, and flying insects at dusk and night over European heathland, forest edge, … | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
European Nightjar only
Lesser Nighthawk only
无
Song & Call Comparison
European Nightjar
Long, mechanical churring trill; sustained 'errrrrr' switching pitch between two notes; unique ventriloquial quality; calls from heath at dusk; alarm a sharp 'coo-ic'
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
European Nightjar
Breeds across Europe and western Asia from Britain to Lake Baikal; long-distance migrant wintering in sub-Saharan Africa from Senegal to East Africa.
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.
保护状况
European Nightjar
Lesser Nighthawk
How to Tell Them Apart
European Nightjar
Grey-brown and buff mottled with intricate dark vermiculations; male has white spots on outer primaries and white outer tail corners; plain grey head with pale supercilium; female lacks white wing …
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
European Nightjar
欧夜鹰（约80克）是一种昼伏夜出、善于伪装的夜鸟，繁殖于欧洲，越冬于撒哈拉以南非洲。以其独特的持续颤鸣著称，可在夏夜传播数公里。在地面营巢，以飞蛾等夜行昆虫为食。近危；因粗放型农业减少及昆虫减少而数量下降。
Lesser Nighthawk
小夜鹰(Chordeiles acutipennis)是一种体重约50克的夜鹰科鸟类，栖息于从美国西南部和墨西哥到哥斯达黎加的荒漠、半干旱灌木丛和开阔林地，冬季迁徙至南美洲。在地面营巢，体色斑驳褐色，具出色的隐蔽性，以昆虫为食。