Spotted Nightjar vs Lyre-tailed Nightjar
Eurostopodus argus 比較対象 Uropsalis lyra
Side-by-Side Comparison
| 属性 | Spotted Nightjar | Lyre-tailed Nightjar |
|---|---|---|
| 学名 | Eurostopodus argus | Uropsalis lyra |
| 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) | 35.2 cm (13.9 in) |
| 体重 | 102.5 g (3.62 oz) | 71.25 g (2.51 oz) |
| 食性 | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … | Hawks moths and flying insects at night over Andean montane forest; male's enormously long tail … |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
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
Lyre-tailed Nightjar
Clear, melodic whistled phrase; 'wheeeoo' delivered from Andean ridges; males give repeated territorial whistle; alarm a sharp 'chek'; female call quieter and thinner
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.
Lyre-tailed Nightjar
Resident of Andean cloud forest and forest edge in Colombia, Ecuador, Peru, and Bolivia, at 1,000–2,500 m.
保全状況
Spotted Nightjar
Lyre-tailed 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 …
Lyre-tailed Nightjar
Male dark brown with buff mottling; outer tail feathers massively elongated and curved outward forming lyre shape up to 60 cm; white throat. Female plain brown and buff mottled without …
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。
Lyre-tailed Nightjar
A medium Caprimulgidae nightjar (~71 g) of Andean cloud forests from Venezuela to Bolivia. Males bear enormously elongated outer tail feathers extending over three times the body length in a lyrate shape; females lack this ornamentation. Inhabits moist montane forest edges. Feeds on insects at night. Least Concern.