Vogelkop Owlet-nightjar vs Karimui Owlet-nightjar
Aegotheles affinis so với Aegotheles terborghi
Side-by-Side Comparison
| Thuộc Tính | Vogelkop Owlet-nightjar | Karimui Owlet-nightjar |
|---|---|---|
| Tên Khoa Học | Aegotheles affinis | Aegotheles terborghi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Aegothelidae | Aegothelidae |
| Tình Trạng Bảo Tồn | Near Threatened | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 26,7 cm (10.5 in) | — |
| Khối Lượng | 52,3 g (1.84 oz) | 60,0 g (2.12 oz) |
| Chế Độ Ăn | Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. | Night-active insect hunter taking beetles, moths, and termites in brief aerial pursuits and occasional ground … |
| Số Trứng | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Vogelkop Owlet-nightjar
Soft churring trill; quiet 'trrr' from Vogelkop Peninsula forest; calls at night; poorly documented; similar to Barred Owlet-nightjar but softer; alarm a chattered series
Karimui Owlet-nightjar
Virtually undocumented vocalizations; known only from Papua New Guinea highlands; presumed churring call typical of genus; essentially no recordings exist
Geographic Range & Migration
Vogelkop Owlet-nightjar
Endemic to the Vogelkop Peninsula of western New Guinea. Found in lowland and hill forest. Range and habits poorly understood from few specimens.
Karimui Owlet-nightjar
Endemic to the Karimui Basin of Papua New Guinea at 1,000–2,000 m. One of the rarest birds in New Guinea; known from very few specimens.
Tình Trạng Bảo Tồn
Vogelkop Owlet-nightjar
Karimui Owlet-nightjar
How to Tell Them Apart
Vogelkop Owlet-nightjar
Dark grey-brown upperparts with darker barring; underparts pale buff barred dark brown; facial disc with dark border; restricted to Vogelkop Peninsula, New Guinea; slightly darker and greyer than allied Mountain …
Karimui Owlet-nightjar
Brown upperparts with dark barring and pale buff edging; underparts pale buff barred brown; facial disc marked with dark lines; recently described New Guinea species; plumage details incompletely documented from …
About These Birds
Vogelkop Owlet-nightjar
A medium-sized owlet-nightjar (22-24 cm) found in montane forests of the Vogelkop Peninsula (Bird's Head) of western New Guinea. Dark brown barred plumage. Nocturnal insectivore. Recently recognized as a distinct species, separated from Barred Owlet-nightjar. Limited ecological data.
Karimui Owlet-nightjar
A medium-sized owlet-nightjar found only in the Karimui Basin area of Papua New Guinea. Described from a small number of specimens. Dark plumage with fine barring. Nocturnal insectivore of montane forest. One of the least known of all owlet-nightjars.