Lesser Nighthawk vs Nacunda Nighthawk
Chordeiles acutipennis 比較対象 Chordeiles nacunda
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | Nacunda Nighthawk |
|---|---|---|
| 学名 | Chordeiles acutipennis | Chordeiles nacunda |
| 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) | 47.6 cm (18.7 in) |
| 体重 | 50.0 g (1.76 oz) | 157.0 g (5.54 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
None
Lesser Nighthawk only
Nacunda Nighthawk 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
Nacunda Nighthawk
Deep, booming 'na-KUN-da' or 'woop-woop'; low-pitched buzzy calls; wings produce loud rattling sound in display; louder than most nighthawks
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.
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
保全状況
Lesser Nighthawk
Nacunda Nighthawk
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 …
Nacunda Nighthawk
Large nighthawk; brown above with buff mottling; white throat and belly contrasting strongly with dark breast; bold white wing bar across primaries visible in flight; white tail band. Female has …
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。
Nacunda Nighthawk
ナクンダナイトホーク(Chordeiles nacunda)は南アメリカのグラン・チャコや草原地帯に生息する大型のナイトホークです。体長約28cmで、白い翼帯が特徴的です。開けた草原や農地を好み、群れで行動することがあります。