New Caledonian Nightjar vs Cayenne Nightjar
Eurostopodus exul เปรียบเทียบกับ Setopagis maculosa
Side-by-Side Comparison
| คุณสมบัติ | New Caledonian Nightjar | Cayenne Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Eurostopodus exul | Setopagis maculosa |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Not Evaluated | Data Deficient |
| ความยาว | — | — |
| กว้างปีก | 36.4 cm (14.3 in) | 27.8 cm (10.9 in) |
| น้ำหนัก | 77.0 g (2.72 oz) | 47.0 g (1.66 oz) |
| อาหาร | Feeds on flying insects caught in aerial pursuit at night; extinct in New Caledonia, diet … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| จำนวนไข่ | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
ไม่มี
New Caledonian Nightjar only
Cayenne Nightjar only
Song & Call Comparison
New Caledonian Nightjar
Poorly documented calls; presumed churring nocturnal song similar to congeners; deep resonant trilling at low pitch; vocalizations essentially unknown
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
New Caledonian Nightjar
Formerly endemic to New Caledonia; known from historical records only; possibly extinct, last confirmed late 19th century.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
สถานะการอนุรักษ์
New Caledonian Nightjar
Cayenne Nightjar
How to Tell Them Apart
New Caledonian Nightjar
Brown and grey mottled with buff and dark vermiculations; whitish-buff throat patch; fine pale shaft streaks on crown; no white in wings or tail; known from very few specimens; New …
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
New Caledonian Nightjar
A small, poorly known Caprimulgidae nightjar (~77 g) endemic to New Caledonia. Known from very few specimens; status unclear and possibly extinct. Cryptic brown-and-buff plumage. Presumed to inhabit open scrub or forest edge. Crepuscular insectivore. Not evaluated by IUCN due to scarcity of data.
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.