Long-tailed Nightjar vs Papuan Nightjar
Caprimulgus climacurus so với Eurostopodus papuensis
Side-by-Side Comparison
| Thuộc Tính | Long-tailed Nightjar | Papuan Nightjar |
|---|---|---|
| Tên Khoa Học | Caprimulgus climacurus | Eurostopodus papuensis |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 28,6 cm (11.3 in) | 37,9 cm (14.9 in) |
| Khối Lượng | 48,333333333333336 g (1.70 oz) | 80,5 g (2.84 oz) |
| Chế Độ Ăn | Crepuscular to nocturnal; feeds predominantly on moths and flying beetles, hawked in open flight near … | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| Số Trứng | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Long-tailed Nightjar only
Papuan Nightjar only
Không
Song & Call Comparison
Long-tailed Nightjar
Churring trill with hollow 'cuck' notes; 'cuck-churr-cuck' pattern; calls from West African woodland at night; alarm a sharp bark; persistent caller in dry season
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
Geographic Range & Migration
Long-tailed Nightjar
Found in East Africa from Ethiopia south to Kenya and Tanzania. Resident in open bushland. Male has elongated outer tail feathers with bare shafts.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
Tình Trạng Bảo Tồn
Long-tailed Nightjar
Papuan Nightjar
How to Tell Them Apart
Long-tailed Nightjar
Brown and black cryptic upperparts; white throat patch; males sport extremely elongated central tail feathers twice body length with bare white rachis; females much shorter-tailed; West African savanna specialist.
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.
About These Birds
Long-tailed Nightjar
A slender nightjar (21-28 cm including elongated tail streamers) found in open woodlands and savanna across sub-Saharan Africa. Males have extraordinarily long central tail feathers during breeding season. Nocturnal insectivore; an intra-African migrant following seasonal rainfall.
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.