Vogelkop Owlet-nightjar vs Moluccan Owlet-nightjar
Aegotheles affinis 对比 Aegotheles crinifrons
Side-by-Side Comparison
| 属性 | Vogelkop Owlet-nightjar | Moluccan Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles affinis | Aegotheles crinifrons |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 26.7 cm (10.5 in) | 32.9 cm (13.0 in) |
| 体重 | 52.3 g (1.84 oz) | 136.0 g (4.80 oz) |
| 食性 | Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. | Strictly nocturnal; takes beetles, moths, and flying termites in sallying flight from a perch near … |
| 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
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
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.
Moluccan Owlet-nightjar
Endemic to the northern Moluccas of Indonesia. Resident in lowland and hill forest on Halmahera and adjacent islands.
保护状况
Vogelkop Owlet-nightjar
Moluccan 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 …
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
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。
Moluccan Owlet-nightjar
一种中型裸鼻鸱（体长25-29厘米），特产于印度尼西亚摩鹿加群岛。深褐色体羽。属裸鼻鸱科（Aegothelidae），是该地区知之甚少的夜行性食虫鸟。