Vogelkop Owlet-nightjar vs Australian Owlet-nightjar
Aegotheles affinis 对比 Aegotheles cristatus
Side-by-Side Comparison
| 属性 | Vogelkop Owlet-nightjar | Australian Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles affinis | Aegotheles cristatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 26.7 cm (10.5 in) | 27.2 cm (10.7 in) |
| 体重 | 52.3 g (1.84 oz) | 48.0 g (1.69 oz) |
| 食性 | Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. | Crepuscular to nocturnal; feeds on large beetles, moths, and flying insects by aerial sallies and … |
| 产卵数 | -- | 2-5 |
| 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
Australian Owlet-nightjar
Loud, churring 'churr-churr' and yapping 'quee-quee'; distinctive churring trill; calls at night from tree hollows in Australian woodland; alarm a sharp yapping series
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.
Australian Owlet-nightjar
Found throughout Australia including Tasmania. Resident in woodland, mallee scrub, and suburban areas. Australia's most widespread owlet-nightjar.
保护状况
Vogelkop Owlet-nightjar
Australian 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 …
Australian Owlet-nightjar
Grey-brown upperparts with dark brown barring; underparts pale buff finely barred dark; facial disc with bold dark bars; small crest feathers; two morphs—grey and rufous-brown; commonly seen perching upright in …
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。
Australian Owlet-nightjar
一种小型裸鼻鸱（体长21-25厘米），是其科中分布最广、最常见的成员。分布于澳大利亚至新几内亚的多种栖息地。属裸鼻鸱科（Aegothelidae），夜行性，常栖于树洞中，以昆虫为食。