Australian Owlet-nightjar vs New Caledonian Owlet-nightjar
Aegotheles cristatus 对比 Aegotheles savesi
Side-by-Side Comparison
| 属性 | Australian Owlet-nightjar | New Caledonian Owlet-nightjar |
|---|---|---|
| 学名 | Aegotheles cristatus | Aegotheles savesi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Aegothelidae | Aegothelidae |
| 保护状况 | Least Concern | Critically Endangered |
| 体长 | — | — |
| 翼展 | 27.2 cm (10.7 in) | 32.6 cm (12.8 in) |
| 体重 | 48.0 g (1.69 oz) | 55.5 g (1.96 oz) |
| 食性 | Crepuscular to nocturnal; feeds on large beetles, moths, and flying insects by aerial sallies and … | Night hunter of beetles, large moths, and termites; combines aerial sallying with gleaning on tree … |
| 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
New Caledonian Owlet-nightjar
Extremely poorly known; presumed churring trill; critically endangered with fewer than 50 individuals; no confirmed recordings from New Caledonian forest
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.
New Caledonian Owlet-nightjar
Possibly extinct; known from one specimen from New Caledonia collected in 1880. Critically Endangered; may survive in dense humid forest.
保护状况
Australian Owlet-nightjar
New Caledonian 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 …
New Caledonian Owlet-nightjar
Dark brown upperparts with buff barring; underparts pale buff barred dark brown; facial disc with dark surround; large for genus; critically endangered New Caledonian endemic known from very few records …
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。
New Caledonian Owlet-nightjar
一种极为稀有、可能已灭绝的裸鼻鸱（体长28厘米），特产于新喀里多尼亚。属裸鼻鸱科（Aegothelidae），仅凭极少数标本和目击记录得知。自20世纪中期以来几乎无确切记录。