Nacunda Nighthawk vs Heinrich's Nightjar
Chordeiles nacunda 对比 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Nacunda Nighthawk | Heinrich's Nightjar |
|---|---|---|
| 学名 | Chordeiles nacunda | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 47.6 cm (18.7 in) | 39.9 cm (15.7 in) |
| 体重 | 157.0 g (5.54 oz) | 104.0 g (3.67 oz) |
| 食性 | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 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
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保护状况
Nacunda Nighthawk
Heinrich'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 …
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
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。
Heinrich's Nightjar
中型夜鹰（约104克），印度尼西亚苏拉威西特有种。夜行性食虫鸟。无危。