Mozambique Nightjar vs Archbold's Nightjar
Caprimulgus fossii 比較対象 Eurostopodus archboldi
Side-by-Side Comparison
| 属性 | Mozambique Nightjar | Archbold's Nightjar |
|---|---|---|
| 学名 | Caprimulgus fossii | Eurostopodus archboldi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 31.0 cm (12.2 in) | 41.0 cm (16.1 in) |
| 体重 | 61.7 g (2.18 oz) | 77.0 g (2.72 oz) |
| 食性 | Feeds nocturnally on flying insects, chiefly moths and beetles, by hawking low over arid scrub … | 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
Mozambique Nightjar
Loud churring trill; resonant 'charrr' from miombo woodland; calls from sandy ground at night; alarm a sharp 'churk'; one of southern Africa's most familiar nightjar calls
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
Mozambique Nightjar
Breeds in West Africa from Senegal east to Ethiopia. Intra-African migrant; male has extraordinary elongated flag-like wing feathers.
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
Mozambique Nightjar
Archbold's Nightjar
How to Tell Them Apart
Mozambique Nightjar
Grey-brown upperparts with black streaks and pale buff freckling; white throat patch; underparts barred buff and dark brown; males show white outer tail corners; Southern African bird distinguished by greyer …
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
Mozambique Nightjar
体長22〜24cmの南・東アフリカに生息するヨタカ。灰褐色で白い翼斑と尾斑が目立ち、ゴロゴロ音を出す。
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。