Heinrich's Nightjar vs Long-trained Nightjar
Eurostopodus diabolicus 比較対象 Macropsalis forcipata
Side-by-Side Comparison
| 属性 | Heinrich's Nightjar | Long-trained Nightjar |
|---|---|---|
| 学名 | Eurostopodus diabolicus | Macropsalis forcipata |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 39.9 cm (15.7 in) | 45.0 cm (17.7 in) |
| 体重 | 104.0 g (3.67 oz) | 111.25 g (3.92 oz) |
| 食性 | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. | Aerial insectivore; hawks moths and beetles in nocturnal flight over Atlantic Forest grassland and scrub. |
| 一腹卵数 | 1 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Long-trained Nightjar
Loud, resonant 'chuck' or 'tuck' notes; hollow knocking quality; calls from Atlantic Forest edge at night; males perform aerial display; alarm a rapid staccato bark
Geographic Range & Migration
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Long-trained Nightjar
Endemic to southeastern Brazil (São Paulo, Minas Gerais, Rio de Janeiro); resident of Atlantic forest edge; vulnerable due to deforestation.
保全状況
Heinrich's Nightjar
Long-trained Nightjar
How to Tell Them Apart
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.
Long-trained Nightjar
Male with extremely elongated outer tail feathers forming long train up to 60 cm; dark brown with buff and rufous mottling; white throat; white wing bar. Female lacks elongated tail; …
About These Birds
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。
Long-trained Nightjar
A large Caprimulgidae nightjar (~111 g) of subtropical Atlantic forest and open country in southeastern Brazil. Males have extraordinary forked tails extending far beyond body length. Inhabits forest edges and clearings in Atlantic Forest remnants. Feeds on moths and large insects. Least Concern; some decline with deforestation.