Star-spotted Nightjar vs Spotted Nightjar
Caprimulgus stellatus 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Star-spotted Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus stellatus | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.9 cm (12.2 in) | 42.7 cm (16.8 in) |
| 体重 | 59.25 g (2.09 oz) | 102.5 g (3.62 oz) |
| 食性 | -- | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 一腹卵数 | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Star-spotted Nightjar
Churring trill; hollow 'chuck' notes interspersed with churring; calls from dry East African bush at night; similar to Donaldson Smith's but larger and louder
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Star-spotted Nightjar
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保全状況
Star-spotted Nightjar
Spotted Nightjar
How to Tell Them Apart
Star-spotted Nightjar
Dark brown upperparts densely dotted with small buff-white stellate spots; white throat patch; underparts barred buff and dark brown; the star-like white spotting on wing coverts and back is the …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
Star-spotted Nightjar
体長21〜23cmのアフリカの角・アラビア半島南部の乾燥した岩場の半砂漠に生息するヨタカ。星状の白い斑点が特徴。
Spotted Nightjar
オーストラリア本土のスピニフェックス草原に生息するヨタカで、体重103g。