Sulawesi Nightjar vs Spotted Nightjar
Caprimulgus celebensis 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Sulawesi Nightjar | Spotted Nightjar |
|---|---|---|
| 学名 | Caprimulgus celebensis | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 37.4 cm (14.7 in) | 42.7 cm (16.8 in) |
| 体重 | 63.166666666666664 g (2.23 oz) | 102.5 g (3.62 oz) |
| 食性 | Crepuscular insectivore specialising in large moths; also takes beetles and flies in low-level aerial sallies. | 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
Sulawesi Nightjar
Loud churring call; hollow 'chuck' notes with extended trill; calls at night from Sulawesi forest and scrub; endemic; alarm a sharp bark note
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
Sulawesi Nightjar
Found in Somalia, Kenya, and southern Ethiopia. Resident in arid thorn scrub and open acacia woodland. Uncommon and poorly known.
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
Sulawesi Nightjar
Spotted Nightjar
How to Tell Them Apart
Sulawesi Nightjar
Richly marked rufous-brown and dark grey upperparts; pale buff spotting on wing coverts; white throat patch; underparts buff-white barred brown; Sulawesi endemic showing warmer tones than many regional congeners.
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
Sulawesi Nightjar
体長24〜26cmのスラウェシ固有のヨタカ。低地・山地林に生息する暗褐色の鳥。
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。