Plain Nightjar vs Papuan Nightjar
Caprimulgus inornatus 对比 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Plain Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus inornatus | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 30.6 cm (12.0 in) | 37.9 cm (14.9 in) |
| 体重 | 45.75 g (1.61 oz) | 80.5 g (2.84 oz) |
| 食性 | Feeds nocturnally on moths and large beetles in erratic low-level hunting flights over tropical scrub. | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 产卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain Nightjar
Monotonous churring trill; steady 'churrrrr' from African savanna; calls persistently at night; plain plumage matched by relatively unvaried, repetitive song
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
Plain Nightjar
Found from Ethiopia and Somalia south to Kenya and Tanzania. Resident in arid acacia scrub and dry open country. Closely related to Nubian Nightjar.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保护状况
Plain Nightjar
Papuan Nightjar
How to Tell Them Apart
Plain Nightjar
Uniformly plain sandy-grey upperparts with minimal patterning; faint pale supercilium; small whitish throat spot; underparts pale buff with fine barring; among the least boldly marked nightjars, blending into Sahel scrubland.
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
Plain Nightjar
素色夜鹰，体长21–23厘米，分布于非洲萨赫勒地带（塞内加尔至索马里），淡沙色羽毛，游荡性。
Papuan Nightjar
小型夜鹰（约81克）。分布于新几内亚南部低地。无危。