Plain Nightjar vs Lesser Nighthawk
Caprimulgus inornatus 对比 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Plain Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus inornatus | Chordeiles acutipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 30.6 cm (12.0 in) | 33.0 cm (13.0 in) |
| 体重 | 45.75 g (1.61 oz) | 50.0 g (1.76 oz) |
| 食性 | Feeds nocturnally on moths and large beetles in erratic low-level hunting flights over tropical scrub. | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 产卵数 | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain Nightjar
Monotonous churring trill; steady 'churrrrr' from African savanna; calls persistently at night; plain plumage matched by relatively unvaried, repetitive song
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
Plain Nightjar
Found from Ethiopia and Somalia south to Kenya and Tanzania. Resident in arid acacia scrub and dry open country. Closely related to Nubian 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.
保护状况
Plain Nightjar
Lesser Nighthawk
How to Tell Them Apart
Plain Nightjar
Uniformly plain sandy-grey upperparts with minimal patterning; faint pale supercilium; small whitish throat spot; underparts pale buff with fine barring; among the least boldly marked nightjars, blending into Sahel scrubland.
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
Plain Nightjar
素色夜鹰，体长21–23厘米，分布于非洲萨赫勒地带（塞内加尔至索马里），淡沙色羽毛，游荡性。
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。