Eastern Whip-poor-will vs Andaman Nightjar
Antrostomus vociferus 比較対象 Caprimulgus andamanicus
Side-by-Side Comparison
| 属性 | Eastern Whip-poor-will | Andaman Nightjar |
|---|---|---|
| 学名 | Antrostomus vociferus | Caprimulgus andamanicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.9 cm (12.2 in) | 36.4 cm (14.3 in) |
| 体重 | 53.099999999999994 g (1.87 oz) | 66.06666666666666 g (2.33 oz) |
| 食性 | Aerial insectivore; catches large moths and flying insects at night over North American forest and … | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Eastern Whip-poor-will
Loud, clear 'whip-POOR-WILL' repeated hundreds of times; emphatic burry whistle; iconic nocturnal forest sound of eastern North America; male calls incessantly at dusk
Andaman Nightjar
Loud 'chuck-chuck-trrr'; hollow knocking prefix followed by trill; endemic to Andaman Islands; calls at night from forest edges and clearings; similar to Large-tailed
Geographic Range & Migration
Eastern Whip-poor-will
Breeds in open woodland and forest edge in eastern North America from southern Canada to the Gulf Coast; winters in Central America and Mexico.
Andaman Nightjar
Endemic to the Philippines including Luzon and Mindanao. Resident in lowland and submontane forest and forest edge up to 1,800 m.
保全状況
Eastern Whip-poor-will
Andaman Nightjar
How to Tell Them Apart
Eastern Whip-poor-will
Grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white tips on outer tail feathers in male; female with buff gorget and buff …
Andaman Nightjar
Warm rufous-brown upperparts with black-centred scapulars and pale buff streaks; broad white throat patch; males show white outer tail feathers; underparts buff barred brown; endemic island coloration slightly warmer than …
About These Birds
Eastern Whip-poor-will
A medium Caprimulgidae nightjar (~53 g) of dry open forest in eastern North America, famous for its insistent 'whip-poor-will' call repeated hundreds of times. Mottled grey-brown plumage. Winters in Central America. Feeds on moths and beetles in aerial pursuit. Near Threatened from insect declines and forest fragmentation.
Andaman Nightjar
体長24〜26cmのアンダマン諸島固有のヨタカ。暗褐色で赤褐色の首輪がある。