Solomons Nightjar vs Cayenne Nightjar
Eurostopodus nigripennis so với Setopagis maculosa
Side-by-Side Comparison
| Thuộc Tính | Solomons Nightjar | Cayenne Nightjar |
|---|---|---|
| Tên Khoa Học | Eurostopodus nigripennis | Setopagis maculosa |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Vulnerable | Data Deficient |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 43,2 cm (17.0 in) | 27,8 cm (10.9 in) |
| Khối Lượng | 137,5 g (4.85 oz) | 47,0 g (1.66 oz) |
| Chế Độ Ăn | Aerial insectivore; hawks moths and other large insects at night over Solomon Islands forest and … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| Số Trứng | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Solomons Nightjar
Deep, resonant churring call at dusk; slow repetitive notes with hollow, frog-like quality; poorly known vocalizations; rarely recorded in wild
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
Solomons Nightjar
Endemic to the Solomon Islands; resident of lowland forest, secondary growth, and forest edge on Guadalcanal and adjacent islands.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
Tình Trạng Bảo Tồn
Solomons Nightjar
Cayenne Nightjar
How to Tell Them Apart
Solomons Nightjar
Dark brown and blackish with buff mottling; rufous-buff supercilium; white throat patch; darker overall than most Eurostopodus nightjars; restricted to Solomon Islands; no white wing or tail patches.
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
Solomons Nightjar
A medium-large Caprimulgidae nightjar (~138 g) endemic to Bougainville and the central Solomon Islands. Dark brown and buff cryptic plumage; relatively large for the genus. Inhabits closed-canopy forest and forest edges. Feeds on insects at night. Vulnerable owing to its very restricted island range and ongoing deforestation.
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.