Vogelkop Owlet-nightjar vs Wallace's Owlet-nightjar
Aegotheles affinis 对比 Aegotheles wallacii
Side-by-Side Comparison
| 属性 | Vogelkop Owlet-nightjar | Wallace's Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles affinis | Aegotheles wallacii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 26.7 cm (10.5 in) | 23.8 cm (9.4 in) |
| 体重 | 52.3 g (1.84 oz) | 49.9 g (1.76 oz) |
| 食性 | Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. | Crepuscular insectivore feeding on large beetles and moths; hunts with combined aerial sallies and surface … |
| 产卵数 | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Vogelkop Owlet-nightjar
Soft churring trill; quiet 'trrr' from Vogelkop Peninsula forest; calls at night; poorly documented; similar to Barred Owlet-nightjar but softer; alarm a chattered series
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
Vogelkop Owlet-nightjar
Endemic to the Vogelkop Peninsula of western New Guinea. Found in lowland and hill forest. Range and habits poorly understood from few specimens.
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.
保护状况
Vogelkop Owlet-nightjar
Wallace's Owlet-nightjar
How to Tell Them Apart
Vogelkop Owlet-nightjar
Dark grey-brown upperparts with darker barring; underparts pale buff barred dark brown; facial disc with dark border; restricted to Vogelkop Peninsula, New Guinea; slightly darker and greyer than allied Mountain …
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
Vogelkop Owlet-nightjar
一种中型裸鼻鸱（体长22-24厘米），分布于新几内亚沃格尔科普半岛（鸟头半岛）的山地森林中。属裸鼻鸱科（Aegothelidae），夜行性，以昆虫为食。体羽褐色具细纹。
Wallace's Owlet-nightjar
一种中型裸鼻鸱（体长23-25厘米），分布于新几内亚及阿鲁群岛的低地森林中。属裸鼻鸱科（Aegothelidae），夜行性食虫鸟，体羽褐色，以发现者华莱士命名。