Lesser Nighthawk vs New Caledonian Nightjar
Chordeiles acutipennis 对比 Eurostopodus exul
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | New Caledonian Nightjar |
|---|---|---|
| 学名 | Chordeiles acutipennis | Eurostopodus exul |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 33.0 cm (13.0 in) | 36.4 cm (14.3 in) |
| 体重 | 50.0 g (1.76 oz) | 77.0 g (2.72 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Feeds on flying insects caught in aerial pursuit at night; extinct in New Caledonia, diet … |
| 产卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Lesser Nighthawk
Loud purring trill; buzzy 'brrrrr' given in flight; lower and softer than Common Nighthawk; males display with booming wingbeats; calls at dusk over deserts
New Caledonian Nightjar
Poorly documented calls; presumed churring nocturnal song similar to congeners; deep resonant trilling at low pitch; vocalizations essentially unknown
Geographic Range & Migration
Lesser Nighthawk
Breeds in open arid scrub from southwestern USA south through Central America to western South America; winters in Mexico and northern South America.
New Caledonian Nightjar
Formerly endemic to New Caledonia; known from historical records only; possibly extinct, last confirmed late 19th century.
保护状况
Lesser Nighthawk
New Caledonian Nightjar
How to Tell Them Apart
Lesser Nighthawk
Brown and buff mottled above; buff-white below with brown barring; white throat in male; white wing bar closer to wingtip than in Common Nighthawk; buff tail band. Female with buff …
New Caledonian Nightjar
Brown and grey mottled with buff and dark vermiculations; whitish-buff throat patch; fine pale shaft streaks on crown; no white in wings or tail; known from very few specimens; New …
About These Birds
Lesser Nighthawk
小夜鹰(Chordeiles acutipennis)是一种体重约50克的夜鹰科鸟类，栖息于从美国西南部和墨西哥到哥斯达黎加的荒漠、半干旱灌木丛和开阔林地，冬季迁徙至南美洲。在地面营巢，体色斑驳褐色，具出色的隐蔽性，以昆虫为食。
New Caledonian Nightjar
小型夜鹰（约77克），新喀里多尼亚特有种。仅知于极少数标本；可能已灭绝。