Large-tailed Nightjar vs Heinrich's Nightjar
Caprimulgus macrurus 比較対象 Eurostopodus diabolicus
Side-by-Side Comparison
| 属性 | Large-tailed Nightjar | Heinrich's Nightjar |
|---|---|---|
| 学名 | Caprimulgus macrurus | Eurostopodus diabolicus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 35.8 cm (14.1 in) | 39.9 cm (15.7 in) |
| 体重 | 69.16666666666667 g (2.44 oz) | 104.0 g (3.67 oz) |
| 食性 | Nocturnal feeder on flying insects including moths, beetles, and larger dipterans; hunts in low coursing … | 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
Large-tailed Nightjar only
Heinrich's Nightjar only
None
Song & Call Comparison
Large-tailed Nightjar
Loud, resonant 'chuck-chuck-churr'; hollow knocking notes with long trill; one of Asia's commonest nightjars; calls persistently from forest edges; carries great distance
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Large-tailed Nightjar
Found from India and Sri Lanka east to the Philippines and northern Australia. Resident in forest edge, secondary growth, and plantations.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
保全状況
Large-tailed Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Large-tailed Nightjar
Intricately patterned brown, black, and buff upperparts; pale supercilium contrasts with dark crown; white throat patch; males show conspicuous white outer tail feathers and white primary spots; long tail distinctive.
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
Large-tailed Nightjar
体長25〜33cmの南・東南アジアからオーストラリアに生息するヨタカ。赤褐色の首輪とトク・トク・トクという鳴き声が特徴。
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。