Lesser Nighthawk vs Scrub Nightjar
Chordeiles acutipennis 比較対象 Nyctidromus anthonyi
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | Scrub Nightjar |
|---|---|---|
| 学名 | Chordeiles acutipennis | Nyctidromus anthonyi |
| 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) | 24.8 cm (9.8 in) |
| 体重 | 50.0 g (1.76 oz) | 36.2 g (1.28 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Catches flying insects in nocturnal aerial sallies over arid scrub of Ecuador and Peru. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
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
Scrub Nightjar
Whistled churring phrases; melodic 'pweer-pweer' series; similar to Pauraque but drier and less rich; calls from scrubby desert at night; contact a soft 'chuck'
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.
Scrub Nightjar
Resident of arid scrub, dry woodland, and coastal zones in western Ecuador and northwestern Peru.
保全状況
Lesser Nighthawk
Scrub 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 …
Scrub Nightjar
Pale sandy-brown with fine dark brown vermiculations; white throat patch; white outer tail feathers in male; no white wing bar; smaller and paler overall than Pauraque; buff outer tail in …
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。
Scrub Nightjar
A small Caprimulgidae nightjar (~36 g) of arid coastal scrub and thorn-scrub in southwestern Ecuador and northwestern Peru. Pale sandy-buff and brown plumage suits its xeric habitat. Closely related to the Pauraque but smaller and paler. Nocturnal insectivore; calls at dusk. Least Concern in its limited range.