Papuan Nightjar vs Common Poorwill
Eurostopodus papuensis 比較対象 Phalaenoptilus nuttallii
Side-by-Side Comparison
| 属性 | Papuan Nightjar | Common Poorwill |
|---|---|---|
| 学名 | Eurostopodus papuensis | Phalaenoptilus nuttallii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 37.9 cm (14.9 in) | 28.8 cm (11.3 in) |
| 体重 | 80.5 g (2.84 oz) | 46.45 g (1.64 oz) |
| 食性 | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. | Catches moths, beetles, and flying insects on short sallies near ground; only bird known to … |
| 一腹卵数 | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Papuan Nightjar
Churring, repetitive nocturnal call; soft bubbling trill; melodic series of hollow notes; calls from low perch or ground in New Guinea lowland forest
Common Poorwill
Clear, whistled 'poor-WILL' with burry quality; sometimes 'poor-will-ip'; carries well across desert scrub; may call thousands of times in a night; males very persistent
Geographic Range & Migration
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
Common Poorwill
Resident of arid scrub, sagebrush, and chaparral in western North America from British Columbia south to central Mexico; only hibernating bird.
保全状況
Papuan Nightjar
Common Poorwill
How to Tell Them Apart
Papuan Nightjar
Dark grey-brown finely vermiculated with buff and black; pale buff and rufous throat patch; pale supercilium; no white wing patches; tail barred brown and buff; cryptically patterned bark-mimicking plumage.
Common Poorwill
Grey-brown and buff mottled with dark vermiculations; white throat patch bordered by dark collar; pale buff and dark barred underparts; white tips on outer tail feathers; no white wing patches; …
About These Birds
Papuan Nightjar
ニューギニア南部の低地に生息するヨタカで、体重81g。
Common Poorwill
北米西部に生息する夜行性の鳥で、冬眠する唯一の既知の鳥種として知られる。昆虫を捕食し、代謝を著しく下げて数ヶ月間の冬眠状態に入ることができる。