Nacunda Nighthawk vs Spotted Nightjar
Chordeiles nacunda 对比 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Nacunda Nighthawk | Spotted Nightjar |
|---|---|---|
| 学名 | Chordeiles nacunda | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 47.6 cm (18.7 in) | 42.7 cm (16.8 in) |
| 体重 | 157.0 g (5.54 oz) | 102.5 g (3.62 oz) |
| 食性 | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保护状况
Nacunda Nighthawk
Spotted Nightjar
How to Tell Them Apart
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 …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
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。
Spotted Nightjar
中型夜鹰（约103克）。栖息于澳大利亚大陆的开阔林地和纺锤草草地。无危。