Lesser Nighthawk vs Brown Nightjar
Chordeiles acutipennis 对比 Veles binotatus
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | Brown Nightjar |
|---|---|---|
| 学名 | Chordeiles acutipennis | Veles binotatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 33.0 cm (13.0 in) | 29.8 cm (11.7 in) |
| 体重 | 50.0 g (1.76 oz) | 63.0 g (2.22 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Nocturnal aerial insectivore; catches moths and flying insects over West and Central African forest. |
| 产卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Brown Nightjar
Repeated 'pew-pew' or 'puu-puu'; mellow, hollow whistle from African rainforest; calls from dense canopy at night; soft and ventriloquial; alarm a sharp 'chik'
Geographic Range & Migration
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.
Brown Nightjar
Resident of lowland and submontane forest edge and clearings in West and Central Africa from Sierra Leone and Liberia east to DR Congo and Uganda.
保护状况
Lesser Nighthawk
Brown Nightjar
How to Tell Them Apart
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 …
Brown Nightjar
Uniform dark rufous-brown with fine dark vermiculations; small pale buff wing spots; no white throat patch; no white tail markings; monotypic; very cryptic plumage matched to dark rainforest bark; West …
About These Birds
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。
Brown Nightjar
A medium-small Caprimulgidae nightjar (~63 g) of lowland and secondary forest in equatorial West Africa from Sierra Leone to Uganda. Uniformly dark brown above with a small white throat spot; plain compared with many nightjars. Nocturnal insectivore of forest understorey. Least Concern in its equatorial forest range.