Salvadori's Nightjar vs Cayenne Nightjar
Caprimulgus pulchellus เปรียบเทียบกับ Setopagis maculosa
Side-by-Side Comparison
| คุณสมบัติ | Salvadori's Nightjar | Cayenne Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus pulchellus | Setopagis maculosa |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Data Deficient |
| ความยาว | — | — |
| กว้างปีก | 30.8 cm (12.1 in) | 27.8 cm (10.9 in) |
| น้ำหนัก | 57.5 g (2.03 oz) | 47.0 g (1.66 oz) |
| อาหาร | 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. |
| จำนวนไข่ | 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.
สถานะการอนุรักษ์
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
A medium-sized nightjar (24-26 cm) endemic to montane forests of Sumatra and Java, Indonesia. Dark brown plumage with rufous collar patches. Nocturnal insectivore of high-altitude forests above 1,000 m. Classified as Vulnerable due to habitat loss in montane regions.
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.