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 | Crepuscular insect hawker; primarily moths and beetles caught during aerial sallies over forest edges. | 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
Found from India and Sri Lanka east to southern China, Indochina, and the Philippines. Resident in open country, rice paddies, and light scrub.
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。