Least Nighthawk vs Spotted Nightjar
Chordeiles pusillus 对比 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Least Nighthawk | Spotted Nightjar |
|---|---|---|
| 学名 | Chordeiles pusillus | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 25.0 cm (9.8 in) | 42.7 cm (16.8 in) |
| 体重 | 29.733333333333334 g (1.05 oz) | 102.5 g (3.62 oz) |
| 食性 | Catches small flying insects in aerial pursuit over South American scrub and open areas; crepuscular. | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Least Nighthawk
High-pitched, buzzy trill; thin 'pee-pee-pee' series; soft churring from ground; tiny size matched by high, reedy call quality; rarely loud
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Least Nighthawk
Resident of open savanna and cerrado in interior South America from Venezuela and the Guianas south to Bolivia and central Brazil.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保护状况
Least Nighthawk
Spotted Nightjar
How to Tell Them Apart
Least Nighthawk
Smallest Chordeiles; brown and buff mottled above; pale buff underparts with dark barring; small white throat patch in male; narrow white wing bar; white or buff tail spots. Female has …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
Least Nighthawk
侏夜鹰(Chordeiles pusillus)是体型最小的夜鹰属鸟类，体重约30克，属夜鹰科，栖息于巴西东部、玻利维亚北部和委内瑞拉的开阔塞拉多草原、卡廷加灌木丛和干旱林地。体色斑驳棕褐色，以飞行中的昆虫为食。
Spotted Nightjar
中型夜鹰（约103克）。栖息于澳大利亚大陆的开阔林地和纺锤草草地。无危。