Chirruping Nightjar vs Spotted Nightjar
Caprimulgus griseatus 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Chirruping Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus griseatus | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 42.7 cm (16.8 in) |
| 体重 | — | 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
Chirruping Nightjar
Distinctive chirruping trill; rapid high-pitched 'chi-chi-chi-rrr'; sharper and more staccato than typical Caprimulgus; calls at dusk from open habitats
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
Chirruping 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
Chirruping Nightjar
Spotted Nightjar
How to Tell Them Apart
Chirruping Nightjar
Grey-brown upperparts with blackish streaks and pale buff vermiculations; buff-white chin and throat; underparts barred pale buff and dark brown; recently split from Savanna Nightjar, differing in subtle plumage and …
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
Chirruping Nightjar
体長20〜22cmのコロンビア・ベネズエラ・ガイアナの乾燥した低木・半乾燥地に生息するヨタカ。淡い灰褐色。
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。