Papuan Nightjar vs Greater Band-winged Nightjar
Eurostopodus papuensis เปรียบเทียบกับ Systellura longirostris
Side-by-Side Comparison
| คุณสมบัติ | Papuan Nightjar | Greater Band-winged Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Eurostopodus papuensis | Systellura longirostris |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 37.9 cm (14.9 in) | 31.0 cm (12.2 in) |
| น้ำหนัก | 80.5 g (2.84 oz) | 45.666666666666664 g (1.61 oz) |
| อาหาร | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. | Aerial insectivore; catches moths and flying insects at night over South American open and scrubby … |
| จำนวนไข่ | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
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Papuan Nightjar only
Greater Band-winged Nightjar 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
Greater Band-winged Nightjar
Repeated 'tyuk-tyuk' or 'chuck-will'; whistled, melodic phrase; calls from Andean slopes and scrub; alarm a sharp bark; cleaner tone than lowland nightjars
Geographic Range & Migration
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
Greater Band-winged Nightjar
Resident of open rocky slopes and Andean scrub from Ecuador south through Peru, Bolivia, Chile, and Argentina to Patagonia and the Falkland Islands.
สถานะการอนุรักษ์
Papuan Nightjar
Greater Band-winged Nightjar
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.
Greater Band-winged Nightjar
Brown and grey mottled with dark brown and buff vermiculations; white wing bar across primaries forming band pattern in flight; white throat in male; buff throat in female; white outer …
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.
Greater Band-winged Nightjar
A small Caprimulgidae nightjar (~46 g) of open scrub, grassland, and rocky slopes from Argentina northward through the Andes to Colombia. Brown-and-buff cryptic plumage with a pale wing bar. Highly vocal at night in Andean valleys. Feeds on insects aerially. Least Concern across its wide South American range.