Mees's Nightjar vs Spotted Nightjar
Caprimulgus meesi 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Mees's Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus meesi | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 33.6 cm (13.2 in) | 42.7 cm (16.8 in) |
| 体重 | 66.2 g (2.34 oz) | 102.5 g (3.62 oz) |
| 食性 | Crepuscular and nocturnal aerial insectivore; pursues moths and flying beetles over grassland and woodland margins. | 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
Mees's Nightjar
Churring trill from Wallacean islands; repetitive hollow call; closely related to Large-tailed Nightjar; calls from coastal scrub and open woodland at dusk
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
Mees's Nightjar
Endemic to the Lesser Sunda Islands of Indonesia, primarily Timor. Resident in lowland forest, open woodland, and savanna.
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
Mees's Nightjar
Spotted Nightjar
How to Tell Them Apart
Mees's Nightjar
Brown-grey upperparts with blackish crown streaks and pale buff mottling; buff-white supercilium; white chin patch; underparts barred pale buff and brown; closely resembles Large-tailed Nightjar but marginally paler.
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
Mees's Nightjar
体長24〜26cmのインドネシア・レッサーサンダ諸島に生息する近年分割されたヨタカ。鳴き声が異なる。
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。