Australian Owlet-nightjar vs Wallace's Owlet-nightjar
Aegotheles cristatus 对比 Aegotheles wallacii
Side-by-Side Comparison
| 属性 | Australian Owlet-nightjar | Wallace's Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles cristatus | Aegotheles wallacii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 27.2 cm (10.7 in) | 23.8 cm (9.4 in) |
| 体重 | 48.0 g (1.69 oz) | 49.9 g (1.76 oz) |
| 食性 | Crepuscular to nocturnal; feeds on large beetles, moths, and flying insects by aerial sallies and … | Crepuscular insectivore feeding on large beetles and moths; hunts with combined aerial sallies and surface … |
| 产卵数 | 2-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
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
Australian Owlet-nightjar
Found throughout Australia including Tasmania. Resident in woodland, mallee scrub, and suburban areas. Australia's most widespread owlet-nightjar.
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
Australian Owlet-nightjar
Wallace's Owlet-nightjar
How to Tell Them Apart
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 …
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
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。
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。