Lesser Nighthawk vs White-throated Nightjar
Chordeiles acutipennis 比較対象 Eurostopodus mystacalis
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | White-throated Nightjar |
|---|---|---|
| 学名 | Chordeiles acutipennis | Eurostopodus mystacalis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 33.0 cm (13.0 in) | 50.4 cm (19.8 in) |
| 体重 | 50.0 g (1.76 oz) | 138.25 g (4.88 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Catches large flying insects, especially moths and beetles, in aerial sallies over Australian and Pacific … |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
Lesser Nighthawk only
White-throated Nightjar only
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
White-throated Nightjar
Resonant, churring song; rapid 'good-lord-deliver-us' or 'chaw-chaw-chaw'; low, bubbling trill carrying through rainforest; softer than related species
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.
White-throated Nightjar
Resident of open woodland and scrub in eastern and northern Australia; also found on offshore islands and in southern New Guinea.
保全状況
Lesser Nighthawk
White-throated 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 …
White-throated Nightjar
Grey-brown with rufous and black mottling; large bold white throat patch distinctive; no white wing spots or tail markings; well-camouflaged on bark. Male and female similar; one of the larger …
About These Birds
Lesser Nighthawk
ヒメナイトホーク(Chordeiles acutipennis)は北アメリカ南西部からブラジルにかけて広く分布するナイトホークです。体長約20cmで、細長い翼と独特の飛行パターンが特徴です。薄明時に昆虫を捕食し、砂地や岩石地の地面に営巣します。
White-throated Nightjar
東オーストラリアとニューギニア沿岸に生息するヨタカで、体重138g。白い喉が特徴。