Papuan Nightjar vs Common Poorwill
Eurostopodus papuensis so với Phalaenoptilus nuttallii
Side-by-Side Comparison
| Thuộc Tính | Papuan Nightjar | Common Poorwill |
|---|---|---|
| Tên Khoa Học | Eurostopodus papuensis | Phalaenoptilus nuttallii |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 37,9 cm (14.9 in) | 28,8 cm (11.3 in) |
| Khối Lượng | 80,5 g (2.84 oz) | 46,45 g (1.64 oz) |
| Chế Độ Ăn | 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 … |
| Số Trứng | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Papuan Nightjar only
Không
Common Poorwill only
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.
Tình Trạng Bảo Tồn
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
A small Caprimulgidae nightjar (~81 g) of lowland savanna, grassland, and forest edges across the southern lowlands of New Guinea. Cryptic buff-and-brown plumage; white-spotted wings visible in flight. Nocturnal aerial insectivore. Commonly heard at night but rarely seen by day. Least Concern.
Common Poorwill
A small Caprimulgidae nightjar (~46 g) of arid shrubland and rocky desert from southwestern Canada to central Mexico. The only bird known to enter true torpor for extended periods (weeks) as a winter survival strategy. Cryptic grey-brown plumage. Feeds on moths and beetles at night. Least Concern.