Jerdon's Nightjar vs Archbold's Nightjar
Caprimulgus atripennis 比較対象 Eurostopodus archboldi
Side-by-Side Comparison
| 属性 | Jerdon's Nightjar | Archbold's Nightjar |
|---|---|---|
| 学名 | Caprimulgus atripennis | Eurostopodus archboldi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 36.8 cm (14.5 in) | 41.0 cm (16.1 in) |
| 体重 | 58.0 g (2.05 oz) | 77.0 g (2.72 oz) |
| 食性 | Nighttime insectivore catching large moths and beetles in sweeping aerial sallies over rocky hillsides and … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| 一腹卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Jerdon's Nightjar
Loud 'chuck-chuck-chuck-rrr'; hollow knocking 'chuck' notes preceding long trill; calls from South Indian scrub and forest edges; repeats phrase persistently at dusk
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
Jerdon's Nightjar
Found across peninsular India and Sri Lanka, north to Nepal. Resident in dry deciduous forest, scrub jungle, and rocky terrain below 1,500 m.
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
Jerdon's Nightjar
Archbold's Nightjar
How to Tell Them Apart
Jerdon's Nightjar
Dark brownish-black upperparts with pale buff vermiculations; whitish supercilium and moustachial stripe; throat patch white; dark wings with buff-spotted coverts; lacks bold white wing patches of some relatives.
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
Jerdon's Nightjar
体長24〜26cmの南インド・スリランカの岩場の丘陵地に生息するヨタカ。ゴロゴロという鳴き声が特徴。
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。