Eastern Whip-poor-will vs Heinrich's Nightjar
Antrostomus vociferus 比較対象 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Eastern Whip-poor-will | Heinrich's Nightjar |
|---|---|---|
| 学名 | Antrostomus vociferus | Eurostopodus diabolicus |
| 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) | 39.9 cm (15.7 in) |
| 体重 | 53.099999999999994 g (1.87 oz) | 104.0 g (3.67 oz) |
| 食性 | Aerial insectivore; catches large moths and flying insects at night over North American forest and … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| 一腹卵数 | 1-2 | 1 |
| 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
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
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.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保全状況
Eastern Whip-poor-will
Heinrich's 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 …
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
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.
Heinrich's Nightjar
スラウェシ島固有のヨタカで、体重104g。「悪魔のヨタカ」という名で知られる。