Prigogine's Nightjar vs Spotted Nightjar
Caprimulgus prigoginei 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Prigogine's Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus prigoginei | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Data Deficient | Least Concern |
| 体長 | — | — |
| 翼開長 | 32.2 cm (12.7 in) | 42.7 cm (16.8 in) |
| 体重 | 57.5 g (2.03 oz) | 102.5 g (3.62 oz) |
| 食性 | Nocturnal insectivore feeding on moths, termites, and flying beetles caught in aerial sallies over savanna … | 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
Prigogine's Nightjar
Essentially unknown vocalizations; extremely rare Central African species; presumed churring trill; known from only two specimens; calls at night from forest
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
Prigogine's Nightjar
Found in Cameroon, Gabon, Equatorial Guinea, and the Republic of Congo. Resident in lowland rainforest and forest edge. Rare.
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
Prigogine's Nightjar
Spotted Nightjar
How to Tell Them Apart
Prigogine's Nightjar
Dark blackish-brown upperparts with pale buff mottling and streaking; whitish throat patch; buff and brown barred underparts; data-deficient Albertine Rift endemic known from limited specimens.
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
Prigogine's Nightjar
1955年に東コンゴのイトンブウェ山地で採集された1標本のみ知られる絶滅危惧II類のヨタカ。生態は不明。
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。