Barred Owlet-nightjar vs Wallace's Owlet-nightjar
Aegotheles bennettii เปรียบเทียบกับ Aegotheles wallacii
Side-by-Side Comparison
| คุณสมบัติ | Barred Owlet-nightjar | Wallace's Owlet-nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Aegotheles bennettii | Aegotheles wallacii |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Aegothelidae | Aegothelidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 24.6 cm (9.7 in) | 23.8 cm (9.4 in) |
| น้ำหนัก | 52.416666666666664 g (1.85 oz) | 49.9 g (1.76 oz) |
| อาหาร | Crepuscular and nocturnal aerial insectivore; catches beetles, moths, and flying ants in short sallying flights … | Crepuscular insectivore feeding on large beetles and moths; hunts with combined aerial sallies and surface … |
| จำนวนไข่ | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Barred Owlet-nightjar only
ไม่มี
Wallace's Owlet-nightjar only
ไม่มี
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
Wallace's Owlet-nightjar
Soft churring trill; 'churr' from New Guinea lowland forest; moderate pitch; calls at night from hollow tree roost sites; alarm a rapid staccato chatter
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.
Wallace's Owlet-nightjar
Found in New Guinea and the Aru Islands in lowland and hill forest up to 1,200 m. Resident in primary and secondary tropical forest.
สถานะการอนุรักษ์
Barred Owlet-nightjar
Wallace's 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 …
Wallace's Owlet-nightjar
Grey-brown upperparts with dark brown barring and pale buff freckling; underparts pale buff barred brown; facial disc with dark border; Papuan species showing typical owlet-nightjar coloration with moderately contrasting barring.
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.
Wallace's Owlet-nightjar
A medium-sized owlet-nightjar (23-25 cm) found in lowland forests of New Guinea and the Aru Islands. Dark brown plumage with barred underparts. Nocturnal insectivore of dense forest undergrowth. Named after Alfred Russel Wallace. Poorly studied in the wild.