Common Nighthawk vs Heinrich's Nightjar
Chordeiles minor 对比 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Common Nighthawk | Heinrich's Nightjar |
|---|---|---|
| 学名 | Chordeiles minor | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 38.6 cm (15.2 in) | 39.9 cm (15.7 in) |
| 体重 | 71.75 g (2.53 oz) | 104.0 g (3.67 oz) |
| 食性 | Aerial insectivore; catches flying beetles, ants, moths, and flies in fast aerial pursuit over open … | 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
Common Nighthawk
Loud, nasal 'peent' call repeated in flight; display dive produces loud booming 'whomp' with wings; churring trill on breeding grounds; colonial roost cacophony
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Common Nighthawk
Breeds across North America from Alaska to the Gulf Coast; long-distance migrant wintering in South America south to Argentina.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保护状况
Common Nighthawk
Heinrich's Nightjar
How to Tell Them Apart
Common Nighthawk
Brown and grey mottled above; white throat in male; white and dark barred underparts; distinctive white wing bar across primaries positioned more centrally than in Lesser Nighthawk; white tail band …
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
Common Nighthawk
普通夜鹰(Chordeiles minor)是一种体重约72克的中型夜鹰科鸟类，广泛分布于北美洲，冬季迁徙至南美洲。以飞行中的昆虫为食。雄鸟发出特有的嗡嗡叫声和俯冲展示，翅膀上具白色横斑，是最广为人知的夜鹰之一。
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。