Barred Owlet-nightjar vs Karimui Owlet-nightjar
Aegotheles bennettii so với Aegotheles terborghi
Side-by-Side Comparison
| Thuộc Tính | Barred Owlet-nightjar | Karimui Owlet-nightjar |
|---|---|---|
| Tên Khoa Học | Aegotheles bennettii | Aegotheles terborghi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Aegothelidae | Aegothelidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 24,6 cm (9.7 in) | — |
| Khối Lượng | 52,416666666666664 g (1.85 oz) | 60,0 g (2.12 oz) |
| Chế Độ Ăn | Crepuscular and nocturnal aerial insectivore; catches beetles, moths, and flying ants in short sallying flights … | Night-active insect hunter taking beetles, moths, and termites in brief aerial pursuits and occasional ground … |
| Số Trứng | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Barred Owlet-nightjar
Churring 'churr-churr'; moderate-pitched trill from New Guinea lowland forest; calls at night from tree hollows; alarm a chattering series; repetitive territorial call
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
Barred Owlet-nightjar
Found in New Guinea and adjacent islands in lowland and hill forest. Resident in diverse forest types from coast to 1,500 m elevation.
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
Barred Owlet-nightjar
Karimui Owlet-nightjar
How to Tell Them Apart
Barred Owlet-nightjar
Brown upperparts with distinct dark brown barring creating ladder-like pattern; underparts pale buff with extensive dark barring; bold facial disc markings; New Guinea species with the most conspicuously barred plumage …
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
Barred Owlet-nightjar
A medium-sized owlet-nightjar (23-26 cm) found in forests and savanna woodland of New Guinea and northern Australia. Barred brown plumage with a dark crown and facial disc. Nocturnal insectivore, nesting in tree hollows. The most widespread New Guinean owlet-nightjar.
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.