Long-tailed Nightjar vs Papuan Nightjar
Caprimulgus climacurus 比較対象 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Long-tailed Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus climacurus | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 28.6 cm (11.3 in) | 37.9 cm (14.9 in) |
| 体重 | 48.333333333333336 g (1.70 oz) | 80.5 g (2.84 oz) |
| 食性 | Crepuscular to nocturnal; feeds predominantly on moths and flying beetles, hawked in open flight near … | 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
Long-tailed Nightjar
Churring trill with hollow 'cuck' notes; 'cuck-churr-cuck' pattern; calls from West African woodland at night; alarm a sharp bark; persistent caller in dry season
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
Long-tailed Nightjar
Found in East Africa from Ethiopia south to Kenya and Tanzania. Resident in open bushland. Male has elongated outer tail feathers with bare shafts.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保全状況
Long-tailed Nightjar
Papuan Nightjar
How to Tell Them Apart
Long-tailed Nightjar
Brown and black cryptic upperparts; white throat patch; males sport extremely elongated central tail feathers twice body length with bare white rachis; females much shorter-tailed; West African savanna specialist.
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
Long-tailed Nightjar
体長21〜28cmのサハラ以南アフリカに生息するヨタカ。繁殖期の雄は著しく長い尾羽を持つ。
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。