Montane Nightjar vs Spotted Nightjar
Caprimulgus poliocephalus 对比 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Montane Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus poliocephalus | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 31.1 cm (12.2 in) | 42.7 cm (16.8 in) |
| 体重 | 47.050000000000004 g (1.66 oz) | 102.5 g (3.62 oz) |
| 食性 | Nighttime aerial insectivore; moths and beetles are primary prey, caught by hawking over forest clearings. | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 产卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Montane Nightjar
Churring trill from East African highlands; repetitive 'churr-churr-churr'; slightly higher pitched than lowland species; calls from highland scrub and forest edge
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Montane Nightjar
Found across the Indian subcontinent from Pakistan and Nepal south to Sri Lanka. Common in open scrub, rocky hillsides, and dry woodland.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保护状况
Montane Nightjar
Spotted Nightjar
How to Tell Them Apart
Montane Nightjar
Grey-brown upperparts with fine blackish streaks; pale grey head contrasting slightly with browner back; white throat patch; underparts buff barred brown; inhabits high-altitude montane zones in East Africa.
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
Montane Nightjar
山地夜鹰，体长23–24厘米，分布于东非和南非山地森林（埃塞俄比亚至南非），海拔1,500米以上。
Spotted Nightjar
中型夜鹰（约103克）。栖息于澳大利亚大陆的开阔林地和纺锤草草地。无危。