Lesser Nighthawk vs Nacunda Nighthawk
Chordeiles acutipennis 对比 Chordeiles nacunda
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | Nacunda Nighthawk |
|---|---|---|
| 学名 | Chordeiles acutipennis | Chordeiles nacunda |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 33.0 cm (13.0 in) | 47.6 cm (18.7 in) |
| 体重 | 50.0 g (1.76 oz) | 157.0 g (5.54 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共同栖息地
无
Lesser Nighthawk only
Nacunda Nighthawk only
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
Nacunda Nighthawk
Deep, booming 'na-KUN-da' or 'woop-woop'; low-pitched buzzy calls; wings produce loud rattling sound in display; louder than most nighthawks
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.
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
保护状况
Lesser Nighthawk
Nacunda Nighthawk
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 …
Nacunda Nighthawk
Large nighthawk; brown above with buff mottling; white throat and belly contrasting strongly with dark breast; bold white wing bar across primaries visible in flight; white tail band. Female has …
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。
Nacunda Nighthawk
大夜鹰(Chordeiles nacunda)是新大陆体型最大的夜鹰，体重约157克，属夜鹰科，栖息于南美洲的开阔稀树草原和草地。体色斑驳白褐色，翅展宽阔，群集迁徙，以飞行中的大型昆虫为食。