Mountain Owlet-nightjar vs Barred Owlet-nightjar
Aegotheles albertisi so với Aegotheles bennettii
Side-by-Side Comparison
| Thuộc Tính | Mountain Owlet-nightjar | Barred Owlet-nightjar |
|---|---|---|
| Tên Khoa Học | Aegotheles albertisi | Aegotheles bennettii |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Aegothelidae | Aegothelidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 22,8 cm (9.0 in) | 24,6 cm (9.7 in) |
| Khối Lượng | 37,6 g (1.33 oz) | 52,416666666666664 g (1.85 oz) |
| Chế Độ Ăn | Nocturnal beetle and moth specialist; forages by short aerial pursuits and occasionally picks invertebrates from … | Crepuscular and nocturnal aerial insectivore; catches beetles, moths, and flying ants in short sallying flights … |
| Số Trứng | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mountain Owlet-nightjar
High-pitched churring trill; rapid 'cheerr-cheerr' from New Guinea mountains; calls at night from montane forest; alarm a sharp rapid chatter; higher than lowland species
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
Geographic Range & Migration
Mountain Owlet-nightjar
Found in the mountains of New Guinea at 1,200–3,700 m. Resident in montane rainforest and moss forest. Widespread in New Guinea highlands.
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.
Tình Trạng Bảo Tồn
Mountain Owlet-nightjar
Barred Owlet-nightjar
How to Tell Them Apart
Mountain Owlet-nightjar
Rufous-brown upperparts with dark blackish barring; underparts pale buff barred dark brown; facial disc with dark border lines; New Guinea montane species with warm rufous tones distinguishing it from lowland …
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 …
About These Birds
Mountain Owlet-nightjar
A medium-sized owlet-nightjar (21-24 cm) found in montane forests of New Guinea at 1,200-3,700 m elevation. Variable plumage with rufous and grey morphs. Nocturnal insectivore, feeding on beetles and moths near the ground. One of the more commonly encountered New Guinea owlet-nightjars.
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.