Savanna Nightjar vs Papuan Nightjar
Caprimulgus affinis 比較対象 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Savanna Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus affinis | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 31.9 cm (12.6 in) | 37.9 cm (14.9 in) |
| 体重 | 74.16666666666667 g (2.62 oz) | 80.5 g (2.84 oz) |
| 食性 | Nocturnal aerial feeder on moths, beetles, and flying bugs; forages in open areas near woodland … | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Savanna Nightjar
Loud, churring 'chwerrr'; resonant trill from South and Southeast Asian open habitats; calls from bare ground and burnt areas; very common nocturnal sound
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
Savanna Nightjar
Found in Indonesia and the Philippines on Sulawesi, Mindanao, and adjacent islands. Resident in lowland forest edge and scrub.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保全状況
Savanna Nightjar
Papuan Nightjar
How to Tell Them Apart
Savanna Nightjar
Pale greyish-brown upperparts with black shaft streaks and buff spotting; whitish supercilium and moustachial stripe; white throat patch; males show large white outer tail patches; widespread across South and Southeast …
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
Savanna Nightjar
体長20〜23cmのパキスタンからフィリピンの南・東南アジアに生息するヨタカ。白い翼斑が特徴。
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。