Barred Owlet-nightjar vs Moluccan Owlet-nightjar
Aegotheles bennettii so với Aegotheles crinifrons
Side-by-Side Comparison
| Thuộc Tính | Barred Owlet-nightjar | Moluccan Owlet-nightjar |
|---|---|---|
| Tên Khoa Học | Aegotheles bennettii | Aegotheles crinifrons |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Aegothelidae | Aegothelidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 24,6 cm (9.7 in) | 32,9 cm (13.0 in) |
| Khối Lượng | 52,416666666666664 g (1.85 oz) | 136,0 g (4.80 oz) |
| Chế Độ Ăn | Crepuscular and nocturnal aerial insectivore; catches beetles, moths, and flying ants in short sallying flights … | Strictly nocturnal; takes beetles, moths, and flying termites in sallying flight from a perch near … |
| 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
Moluccan Owlet-nightjar
Loud, resonant churring; deep 'churr-churr' for an owlet-nightjar; calls from Halmahera forest at night; larger size reflected in lower pitch; alarm a harsh bark
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.
Moluccan Owlet-nightjar
Endemic to the northern Moluccas of Indonesia. Resident in lowland and hill forest on Halmahera and adjacent islands.
Tình Trạng Bảo Tồn
Barred Owlet-nightjar
Moluccan 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 …
Moluccan Owlet-nightjar
Large; dark sooty-brown upperparts with grey-buff barring; underparts pale buff heavily barred dark brown; very dark facial markings; North Moluccan endemic and one of the largest owlet-nightjars with uniformly dark …
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.
Moluccan Owlet-nightjar
A medium-sized owlet-nightjar (25-29 cm) endemic to the Moluccan Islands of Indonesia. Dark brown plumage with rufous tones and a prominent erectile crest. Nocturnal insectivore of forest and forest edge. Found on Halmahera, Bacan, and possibly other islands.