Nacunda Nighthawk vs Spotted Nightjar
Chordeiles nacunda 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Nacunda Nighthawk | Spotted Nightjar |
|---|---|---|
| 学名 | Chordeiles nacunda | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 47.6 cm (18.7 in) | 42.7 cm (16.8 in) |
| 体重 | 157.0 g (5.54 oz) | 102.5 g (3.62 oz) |
| 食性 | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
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
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保全状況
Nacunda Nighthawk
Spotted Nightjar
How to Tell Them Apart
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 …
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
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。
Spotted Nightjar
オーストラリア本土のスピニフェックス草原に生息するヨタカで、体重103g。