Jerdon's Nightjar vs Heinrich's Nightjar
Caprimulgus atripennis 对比 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Jerdon's Nightjar | Heinrich's Nightjar |
|---|---|---|
| 学名 | Caprimulgus atripennis | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 36.8 cm (14.5 in) | 39.9 cm (15.7 in) |
| 体重 | 58.0 g (2.05 oz) | 104.0 g (3.67 oz) |
| 食性 | Nighttime insectivore catching large moths and beetles in sweeping aerial sallies over rocky hillsides and … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 产卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Jerdon's Nightjar
Loud 'chuck-chuck-chuck-rrr'; hollow knocking 'chuck' notes preceding long trill; calls from South Indian scrub and forest edges; repeats phrase persistently at dusk
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Jerdon's Nightjar
Found across peninsular India and Sri Lanka, north to Nepal. Resident in dry deciduous forest, scrub jungle, and rocky terrain below 1,500 m.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保护状况
Jerdon's Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Jerdon's Nightjar
Dark brownish-black upperparts with pale buff vermiculations; whitish supercilium and moustachial stripe; throat patch white; dark wings with buff-spotted coverts; lacks bold white wing patches of some relatives.
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
Jerdon's Nightjar
杰尔顿夜鹰，体长24–26厘米，分布于印度南部和斯里兰卡岩石山丘，鸣声为嗡嗡声。
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。