Indian Nightjar vs Papuan Nightjar
Caprimulgus asiaticus 比較対象 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Indian Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus asiaticus | Eurostopodus papuensis |
| 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) | 37.9 cm (14.9 in) |
| 体重 | 43.0 g (1.52 oz) | 80.5 g (2.84 oz) |
| 食性 | Nocturnal forager on flying insects; specialises in large moths and beetles in slow aerial passes … | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 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
Papuan Nightjar
Churring, repetitive nocturnal call; soft bubbling trill; melodic series of hollow notes; calls from low perch or ground in New Guinea lowland forest
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.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保全状況
Indian Nightjar
Papuan 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.
Papuan Nightjar
Dark grey-brown finely vermiculated with buff and black; pale buff and rufous throat patch; pale supercilium; no white wing patches; tail barred brown and buff; cryptically patterned bark-mimicking plumage.
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。
Papuan Nightjar
ニューギニア南部の低地に生息するヨタカで、体重81g。