Rufous-cheeked Nightjar vs Papuan Nightjar
Caprimulgus rufigena 对比 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Rufous-cheeked Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus rufigena | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 32.1 cm (12.6 in) | 37.9 cm (14.9 in) |
| 体重 | 54.68333333333334 g (1.93 oz) | 80.5 g (2.84 oz) |
| 食性 | Nocturnal aerial insectivore; catches moths, crickets, and beetles in sustained low-altitude hunting flights. | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-cheeked Nightjar
Rapid churring trill interspersed with 'chook' notes; churring 'rrr-chook-rrr-chook' pattern; calls from southern African woodland at night; distinctive interrupted rhythm
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
Rufous-cheeked Nightjar
Breeds in southern Africa from Namibia to South Africa. Partially migratory, moving north in austral winter. Found in dry woodland and savanna.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保护状况
Rufous-cheeked Nightjar
Papuan Nightjar
How to Tell Them Apart
Rufous-cheeked Nightjar
Cryptic brown-grey upperparts with bold black streaks; distinctive warm rufous-cinnamon cheek patch; white throat patch; males show white outer tail corners absent in females.
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
Rufous-cheeked Nightjar
棕颊夜鹰，体长23–25厘米，有棕色颊斑，分布于东非和南非干旱稀树草原和灌丛，为非洲内部迁徙鸟类。
Papuan Nightjar
小型夜鹰（约81克）。分布于新几内亚南部低地。无危。