Lesser Nighthawk vs Malay Eared-nightjar
Chordeiles acutipennis 比較対象 Lyncornis temminckii
Side-by-Side Comparison
| 属性 | Lesser Nighthawk | Malay Eared-nightjar |
|---|---|---|
| 学名 | Chordeiles acutipennis | Lyncornis temminckii |
| 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) | 41.0 cm (16.1 in) |
| 体重 | 50.0 g (1.76 oz) | 95.0 g (3.35 oz) |
| 食性 | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Nocturnal aerial insectivore; catches large moths and beetles in flight over SE Asian lowland forest. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
Lesser Nighthawk only
Malay Eared-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
Malay Eared-nightjar
Loud, repeated 'tock-tock-tock' or 'bonk-bonk'; hollow, wooden quality; carries well through lowland forest; alarm a sharp 'chek'; call accelerates toward end
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.
Malay Eared-nightjar
Resident of lowland forest, forest edge, and secondary growth in Brunei, Malaysia, Sumatra, and Borneo, up to 600 m.
保全状況
Lesser Nighthawk
Malay Eared-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 …
Malay Eared-nightjar
Brown and buff mottled with black vermiculations; distinctive long narrow ear-tufts projecting from crown; buff-white throat patch; no white wing spots; tail broadly barred brown and buff. Sexes similar.
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。
Malay Eared-nightjar
A medium Caprimulgidae nightjar (~95 g) of forest edges, secondary growth, and plantation margins in Sundaland, including the Malay Peninsula, Borneo, Sumatra, and the Philippines. Distinguished by small, inconspicuous ear tufts. Nocturnal aerial insectivore. Rarely observed; calls heard at night. Least Concern.