Salvadori's Nightjar vs Archbold's Nightjar
Caprimulgus pulchellus 比較対象 Eurostopodus archboldi
Side-by-Side Comparison
| 属性 | Salvadori's Nightjar | Archbold's Nightjar |
|---|---|---|
| 学名 | Caprimulgus pulchellus | Eurostopodus archboldi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.8 cm (12.1 in) | 41.0 cm (16.1 in) |
| 体重 | 57.5 g (2.03 oz) | 77.0 g (2.72 oz) |
| 食性 | Strictly nocturnal aerial forager targeting moths and large beetles; hunts by sight in low, erratic … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Salvadori's Nightjar
Churring trill; repetitive 'chrrr' from Sumatran highland forest; calls at night from mossy forest understory; moderate pitch; similar to but separable from Bornean species
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Geographic Range & Migration
Salvadori's Nightjar
Known from a single specimen from the eastern DRC. One of Africa's rarest birds; range and habitat entirely unknown. Possibly highland forest.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
保全状況
Salvadori's Nightjar
Archbold's Nightjar
How to Tell Them Apart
Salvadori's Nightjar
Attractively patterned dark brown and buff upperparts; warm buff supercilium and throat patch; rufous-buff spotting on wing coverts; underparts barred buff; montane Sundaland endemic with relatively rich coloration.
Archbold's Nightjar
Brown and dark grey with rufous-buff vermiculations; whitish throat patch; pale buff supercilium contrasts with darker crown; no white wing or tail patches; tail barred; New Guinea highlands; few records.
About These Birds
Salvadori's Nightjar
体長24〜26cmのスマトラ・ジャワの山地林（標高1,000m以上）に生息する脆弱種のヨタカ。生息地の喪失が脅威。
Archbold's Nightjar
ニューギニアの亜高山帯に生息するヨタカで、探検家リチャード・アーチボルドにちなんで命名された。