Chirruping Nightjar vs Archbold's Nightjar
Caprimulgus griseatus 比較対象 Eurostopodus archboldi
Side-by-Side Comparison
| 属性 | Chirruping Nightjar | Archbold's Nightjar |
|---|---|---|
| 学名 | Caprimulgus griseatus | Eurostopodus archboldi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 41.0 cm (16.1 in) |
| 体重 | — | 77.0 g (2.72 oz) |
| 食性 | Night-hunting insectivore taking moths, flying beetles, and termites in sustained aerial pursuits. | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| 一腹卵数 | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chirruping Nightjar
Distinctive chirruping trill; rapid high-pitched 'chi-chi-chi-rrr'; sharper and more staccato than typical Caprimulgus; calls at dusk from open habitats
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
Chirruping Nightjar
Found across sub-Saharan Africa from Senegal east to Somalia and south to South Africa. Common on rocky outcrops and granite hills in savanna.
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
Chirruping Nightjar
Archbold's Nightjar
How to Tell Them Apart
Chirruping Nightjar
Grey-brown upperparts with blackish streaks and pale buff vermiculations; buff-white chin and throat; underparts barred pale buff and dark brown; recently split from Savanna Nightjar, differing in subtle plumage and …
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
Chirruping Nightjar
体長20〜22cmのコロンビア・ベネズエラ・ガイアナの乾燥した低木・半乾燥地に生息するヨタカ。淡い灰褐色。
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。