Nacunda Nighthawk vs Archbold's Nightjar
Chordeiles nacunda 对比 Eurostopodus archboldi
Side-by-Side Comparison
| 属性 | Nacunda Nighthawk | Archbold's Nightjar |
|---|---|---|
| 学名 | Chordeiles nacunda | Eurostopodus archboldi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 47.6 cm (18.7 in) | 41.0 cm (16.1 in) |
| 体重 | 157.0 g (5.54 oz) | 77.0 g (2.72 oz) |
| 食性 | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| 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
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Geographic Range & Migration
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
保护状况
Nacunda Nighthawk
Archbold's 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 …
Archbold's Nightjar
Brown and dark grey with rufous-buff vermiculations; whitish throat patch; pale buff supercilium contrasts with darker crown; no white wing or tail patches; tail barred; New Guinea highlands; few records.
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。
Archbold's Nightjar
体重约77克的小型夜鹰，栖息于新几内亚内陆的亚高山草地。以理查德·阿奇博尔德命名。