Salvadori's Nightjar vs Cayenne Nightjar
Caprimulgus pulchellus 比較対象 Setopagis maculosa
Side-by-Side Comparison
| 属性 | Salvadori's Nightjar | Cayenne Nightjar |
|---|---|---|
| 学名 | Caprimulgus pulchellus | Setopagis maculosa |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Data Deficient |
| 体長 | — | — |
| 翼開長 | 30.8 cm (12.1 in) | 27.8 cm (10.9 in) |
| 体重 | 57.5 g (2.03 oz) | 47.0 g (1.66 oz) |
| 食性 | Strictly nocturnal aerial forager targeting moths and large beetles; hunts by sight in low, erratic … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Salvadori's Nightjar
Churring trill; repetitive 'chrrr' from Sumatran highland forest; calls at night from mossy forest understory; moderate pitch; similar to but separable from Bornean species
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
Geographic Range & Migration
Salvadori's Nightjar
Known from a single specimen from the eastern DRC. One of Africa's rarest birds; range and habitat entirely unknown. Possibly highland forest.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
保全状況
Salvadori's Nightjar
Cayenne Nightjar
How to Tell Them Apart
Salvadori's Nightjar
Attractively patterned dark brown and buff upperparts; warm buff supercilium and throat patch; rufous-buff spotting on wing coverts; underparts barred buff; montane Sundaland endemic with relatively rich coloration.
Cayenne Nightjar
Brown and buff mottled above with dark vermiculations; pale buff below with darker barring; white throat patch in male; outer tail spots white; data deficient; known from only a handful …
About These Birds
Salvadori's Nightjar
体長24〜26cmのスマトラ・ジャワの山地林（標高1,000m以上）に生息する脆弱種のヨタカ。生息地の喪失が脅威。
Cayenne Nightjar
A small Caprimulgidae nightjar (~47 g) from coastal French Guiana and adjacent Suriname. Known from only a handful of specimens; biology essentially unknown. Mottled brown plumage presumed cryptic in leaf litter. Presumed nocturnal insectivore. Data Deficient due to extreme rarity of confirmed records in the wild.