Spotted Nightjar vs Malay Eared-nightjar
Eurostopodus argus 比較対象 Lyncornis temminckii
Side-by-Side Comparison
| 属性 | Spotted Nightjar | Malay Eared-nightjar |
|---|---|---|
| 学名 | Eurostopodus argus | Lyncornis temminckii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 42.7 cm (16.8 in) | 41.0 cm (16.1 in) |
| 体重 | 102.5 g (3.62 oz) | 95.0 g (3.35 oz) |
| 食性 | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … | Nocturnal aerial insectivore; catches large moths and beetles in flight over SE Asian lowland forest. |
| 一腹卵数 | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
Spotted Nightjar only
None
Malay Eared-nightjar only
Song & Call Comparison
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
Malay Eared-nightjar
Loud, repeated 'tock-tock-tock' or 'bonk-bonk'; hollow, wooden quality; carries well through lowland forest; alarm a sharp 'chek'; call accelerates toward end
Geographic Range & Migration
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
Malay Eared-nightjar
Resident of lowland forest, forest edge, and secondary growth in Brunei, Malaysia, Sumatra, and Borneo, up to 600 m.
保全状況
Spotted Nightjar
Malay Eared-nightjar
How to Tell Them Apart
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 …
Malay Eared-nightjar
Brown and buff mottled with black vermiculations; distinctive long narrow ear-tufts projecting from crown; buff-white throat patch; no white wing spots; tail broadly barred brown and buff. Sexes similar.
About These Birds
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。
Malay Eared-nightjar
A medium Caprimulgidae nightjar (~95 g) of forest edges, secondary growth, and plantation margins in Sundaland, including the Malay Peninsula, Borneo, Sumatra, and the Philippines. Distinguished by small, inconspicuous ear tufts. Nocturnal aerial insectivore. Rarely observed; calls heard at night. Least Concern.