Freckled Nightjar vs Papuan Nightjar
Caprimulgus tristigma 对比 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Freckled Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus tristigma | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 34.4 cm (13.5 in) | 37.9 cm (14.9 in) |
| 体重 | 79.88333333333334 g (2.82 oz) | 80.5 g (2.84 oz) |
| 食性 | Nocturnal aerial insectivore, hawking moths, beetles, and other flying insects in sustained sallying flight over … | 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
Freckled Nightjar
Loud, dog-like 'bow-wow' or 'woof-woof'; unusual barking call for a nightjar; carries across rocky African outcrops; alarm a sharp 'chek'; distinctive among all nightjars
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
Freckled Nightjar
Found in Borneo and Sumatra in lowland rainforest and peat swamp forest. Rare and seldom recorded; possibly resident year-round.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保护状况
Freckled Nightjar
Papuan Nightjar
How to Tell Them Apart
Freckled Nightjar
Heavily freckled dark grey and black upperparts resembling granite surfaces; whitish throat patch; underparts densely barred dark and pale; uniquely dark stone-coloured cryptic plumage adapted to rocky outcrops in Africa.
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
Freckled Nightjar
雀斑夜鹰，体长25–28厘米，分布于撒哈拉以南非洲岩石山地和巨石丘陵，灰褐斑点如地衣。
Papuan Nightjar
小型夜鹰（约81克）。分布于新几内亚南部低地。无危。