Fiery-necked Nightjar vs Spotted Nightjar
Caprimulgus pectoralis 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Fiery-necked Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus pectoralis | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 31.9 cm (12.6 in) | 42.7 cm (16.8 in) |
| 体重 | 52.083333333333336 g (1.84 oz) | 102.5 g (3.62 oz) |
| 食性 | Feeds at dusk and night on moths and large flying beetles caught in aerial sallies … | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Fiery-necked Nightjar
Rich, melodic 'good-lord-deliver-us'; beautiful flute-like whistled phrase; most musical of African nightjars; calls from savanna woodland at dusk; unmistakable song
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
Fiery-necked Nightjar
Found in East Africa from Ethiopia south to Tanzania on mountain ranges. Resident in montane moorland and forest edge at 1,500–4,000 m.
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
Fiery-necked Nightjar
Spotted Nightjar
How to Tell Them Apart
Fiery-necked Nightjar
Distinctive bold orange-rufous hindneck collar contrasting with dark brown crown; upperparts brown with black streaks and buff mottling; white throat patch; males show white outer tail spots; Africa's most recognisable …
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
Fiery-necked Nightjar
体長23〜25cmのサハラ以南アフリカに生息するヨタカ。赤褐色の首輪と「グッドロード・デリバー・アス」という鳴き声が特徴。
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。