Australian Owlet-nightjar vs Karimui Owlet-nightjar
Aegotheles cristatus so với Aegotheles terborghi
Side-by-Side Comparison
| Thuộc Tính | Australian Owlet-nightjar | Karimui Owlet-nightjar |
|---|---|---|
| Tên Khoa Học | Aegotheles cristatus | Aegotheles terborghi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Aegothelidae | Aegothelidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 27,2 cm (10.7 in) | — |
| Khối Lượng | 48,0 g (1.69 oz) | 60,0 g (2.12 oz) |
| Chế Độ Ăn | Crepuscular to nocturnal; feeds on large beetles, moths, and flying insects by aerial sallies and … | Night-active insect hunter taking beetles, moths, and termites in brief aerial pursuits and occasional ground … |
| Số Trứng | 2-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Australian Owlet-nightjar only
Karimui Owlet-nightjar only
Không
Song & Call Comparison
Australian Owlet-nightjar
Loud, churring 'churr-churr' and yapping 'quee-quee'; distinctive churring trill; calls at night from tree hollows in Australian woodland; alarm a sharp yapping 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
Australian Owlet-nightjar
Found throughout Australia including Tasmania. Resident in woodland, mallee scrub, and suburban areas. Australia's most widespread owlet-nightjar.
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
Australian Owlet-nightjar
Karimui Owlet-nightjar
How to Tell Them Apart
Australian Owlet-nightjar
Grey-brown upperparts with dark brown barring; underparts pale buff finely barred dark; facial disc with bold dark bars; small crest feathers; two morphs—grey and rufous-brown; commonly seen perching upright in …
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
Australian Owlet-nightjar
A small owlet-nightjar (21-25 cm), the most widespread and familiar member of its family. Found across Australia and southern New Guinea. Grey or rufous plumage with bold dark streaks and a distinctive facial disc. Nocturnal insectivore nesting in tree hollows. Resident and common.
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.