Red-necked Nightjar vs Papuan Nightjar
Caprimulgus ruficollis 对比 Eurostopodus papuensis
Side-by-Side Comparison
| 属性 | Red-necked Nightjar | Papuan Nightjar |
|---|---|---|
| 学名 | Caprimulgus ruficollis | Eurostopodus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 39.6 cm (15.6 in) | 37.9 cm (14.9 in) |
| 体重 | 86.33333333333333 g (3.05 oz) | 80.5 g (2.84 oz) |
| 食性 | Hawks large moths, beetles, and flying insects at night over Iberian and North African scrub … | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-necked Nightjar
Loud, resonant 'cut-CHER-cut' or 'cotcorotcot'; far-carrying hollow knocking; churring trill between phrases; calls from scrubby Mediterranean habitats at night
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
Red-necked Nightjar
Breeds on the Iberian Peninsula, Morocco, and northwestern Algeria; long-distance migrant wintering in sub-Saharan West Africa from Senegal to Guinea.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
保护状况
Red-necked Nightjar
Papuan Nightjar
How to Tell Them Apart
Red-necked Nightjar
Large nightjar; grey-brown mottled above; rufous-orange hindneck collar diagnostic; white throat patch in male; white spots on wing coverts and outer tail in male; buff equivalents in female.
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
Red-necked Nightjar
红颈夜鹰，约86克，繁殖于伊比利亚半岛和西北非洲，棕红色颈环，近危。
Papuan Nightjar
小型夜鹰（约81克）。分布于新几内亚南部低地。无危。