Least Nighthawk vs Heinrich's Nightjar
Chordeiles pusillus 对比 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Least Nighthawk | Heinrich's Nightjar |
|---|---|---|
| 学名 | Chordeiles pusillus | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 25.0 cm (9.8 in) | 39.9 cm (15.7 in) |
| 体重 | 29.733333333333334 g (1.05 oz) | 104.0 g (3.67 oz) |
| 食性 | Catches small flying insects in aerial pursuit over South American scrub and open areas; crepuscular. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 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
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
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.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保护状况
Least Nighthawk
Heinrich's 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 …
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
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。
Heinrich's Nightjar
中型夜鹰（约104克），印度尼西亚苏拉威西特有种。夜行性食虫鸟。无危。