European Nightjar vs Cayenne Nightjar
Caprimulgus europaeus 比較対象 Setopagis maculosa
Side-by-Side Comparison
| 属性 | European Nightjar | Cayenne Nightjar |
|---|---|---|
| 学名 | Caprimulgus europaeus | Setopagis maculosa |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Data Deficient |
| 体長 | — | — |
| 翼開長 | 36.6 cm (14.4 in) | 27.8 cm (10.9 in) |
| 体重 | 75.83333333333333 g (2.67 oz) | 47.0 g (1.66 oz) |
| 食性 | Hawks moths, beetles, and flying insects at dusk and night over European heathland, forest edge, … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
共通生息地
European Nightjar only
Cayenne 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'
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
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.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
保全状況
European Nightjar
Cayenne 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 …
Cayenne Nightjar
Brown and buff mottled above with dark vermiculations; pale buff below with darker barring; white throat patch in male; outer tail spots white; data deficient; known from only a handful …
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。
Cayenne Nightjar
A small Caprimulgidae nightjar (~47 g) from coastal French Guiana and adjacent Suriname. Known from only a handful of specimens; biology essentially unknown. Mottled brown plumage presumed cryptic in leaf litter. Presumed nocturnal insectivore. Data Deficient due to extreme rarity of confirmed records in the wild.