European Nightjar vs Heinrich's Nightjar
Caprimulgus europaeus 比較対象 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | European Nightjar | Heinrich's Nightjar |
|---|---|---|
| 学名 | Caprimulgus europaeus | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 36.6 cm (14.4 in) | 39.9 cm (15.7 in) |
| 体重 | 75.83333333333333 g (2.67 oz) | 104.0 g (3.67 oz) |
| 食性 | Hawks moths, beetles, and flying insects at dusk and night over European heathland, forest edge, … | 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
共通生息地
European Nightjar only
Heinrich's Nightjar only
None
Song & Call Comparison
European Nightjar
Long, mechanical churring trill; sustained 'errrrrr' switching pitch between two notes; unique ventriloquial quality; calls from heath at dusk; alarm a sharp 'coo-ic'
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
European Nightjar
Breeds across Europe and western Asia from Britain to Lake Baikal; long-distance migrant wintering in sub-Saharan Africa from Senegal to East Africa.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保全状況
European Nightjar
Heinrich's Nightjar
How to Tell Them Apart
European Nightjar
Grey-brown and buff mottled with intricate dark vermiculations; male has white spots on outer primaries and white outer tail corners; plain grey head with pale supercilium; female lacks white wing …
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
European Nightjar
ヨーロッパ・アジアで繁殖し、アフリカで越冬する夜行性の鳥（体長24〜28cm）。褐色の迷彩模様が枯れ葉の上で完璧な擬態を見せる。Caprimulgus europaeus（ヨーロッパヨタカ）は夜に活動し、特徴的なガラガラという音のような連続音で鳴く。空中で口を大きく開けて飛びながら昆虫を捕食する。Caprimulgidae科。
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。