Mozambique Nightjar vs Lesser Nighthawk
Caprimulgus fossii 比較対象 Chordeiles acutipennis
Side-by-Side Comparison
| 属性 | Mozambique Nightjar | Lesser Nighthawk |
|---|---|---|
| 学名 | Caprimulgus fossii | Chordeiles acutipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 31.0 cm (12.2 in) | 33.0 cm (13.0 in) |
| 体重 | 61.7 g (2.18 oz) | 50.0 g (1.76 oz) |
| 食性 | Feeds nocturnally on flying insects, chiefly moths and beetles, by hawking low over arid scrub … | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
None
Mozambique Nightjar only
Lesser Nighthawk only
Song & Call Comparison
Mozambique Nightjar
Loud churring trill; resonant 'charrr' from miombo woodland; calls from sandy ground at night; alarm a sharp 'churk'; one of southern Africa's most familiar nightjar calls
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
Geographic Range & Migration
Mozambique Nightjar
Breeds in West Africa from Senegal east to Ethiopia. Intra-African migrant; male has extraordinary elongated flag-like wing feathers.
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.
保全状況
Mozambique Nightjar
Lesser Nighthawk
How to Tell Them Apart
Mozambique Nightjar
Grey-brown upperparts with black streaks and pale buff freckling; white throat patch; underparts barred buff and dark brown; males show white outer tail corners; Southern African bird distinguished by greyer …
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 …
About These Birds
Mozambique Nightjar
体長22〜24cmの南・東アフリカに生息するヨタカ。灰褐色で白い翼斑と尾斑が目立ち、ゴロゴロ音を出す。
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。