Pennant-winged Nightjar vs Papuan Nightjar
Caprimulgus vexillarius 对比 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Pennant-winged Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus vexillarius | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 41.4 cm (16.3 in) | 37.9 cm (14.9 in) |
| 体重 | 189.70000000000002 g (6.69 oz) | 80.5 g (2.84 oz) |
| 食性 | Crepuscular forager targeting moths, termites, and large beetles; patrols forest edges and clearings at dusk. | 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
Pennant-winged Nightjar
Melodic whistled churring; cleaner, more musical than most African nightjars; male's display call a repeated mellow whistle; calls at dusk across miombo woodland
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
Pennant-winged Nightjar
Found across sub-Saharan Africa from Guinea east to Ethiopia and south to Angola. Resident in dry savanna, open woodland, and Sahel scrubland.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保护状况
Pennant-winged Nightjar
Papuan Nightjar
How to Tell Them Apart
Pennant-winged Nightjar
Large; dark brown and black upperparts with white wing-covert spots; large white primary patches visible in flight; breeding males grow extraordinary white pennant-shaped ninth primary extensions reaching 50 cm; 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
Pennant-winged Nightjar
旗状翎夜鹰，体长24–28厘米，分布于南非开阔林地，繁殖期雄鸟发育出长达60厘米的白色旗状羽，为长距离非洲内部迁徙鸟类。
Papuan Nightjar
小型夜鹰（约81克）。分布于新几内亚南部低地。无危。