Indian Nightjar vs Heinrich's Nightjar
Caprimulgus asiaticus 比較対象 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Indian Nightjar | Heinrich's Nightjar |
|---|---|---|
| 学名 | Caprimulgus asiaticus | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 29.5 cm (11.6 in) | 39.9 cm (15.7 in) |
| 体重 | 43.0 g (1.52 oz) | 104.0 g (3.67 oz) |
| 食性 | Nocturnal forager on flying insects; specialises in large moths and beetles in slow aerial passes … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 一腹卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Indian Nightjar
Loud 'chuck-chuck-chuck-r'; rapid hollow knocking notes accelerating into a trill; carries far across South Asian scrub; distinctive rhythm; very persistent at night
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Indian Nightjar
Endemic to Madagascar and the Comoro Islands. Resident in forest edge, savanna, and open scrub across the island including arid southern regions.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保全状況
Indian Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Indian Nightjar
Greyish-brown upperparts with black-centred feathers and buff freckling; white throat patch; pale supercilium; males show white primary spots and outer tail corners; underparts barred buff-brown; widespread South Asian species.
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
Indian Nightjar
体長21〜24cmのインド亜大陸・東南アジアに生息するヨタカ。白い喉斑とチャックチャックチャックの鳴き声が特徴。
Heinrich's Nightjar
スラウェシ島固有のヨタカで、体重104g。「悪魔のヨタカ」という名で知られる。