Pennant-winged Nightjar vs Cayenne Nightjar
Caprimulgus vexillarius 对比 Setopagis maculosa
Side-by-Side Comparison
| 属性 | Pennant-winged Nightjar | Cayenne Nightjar |
|---|---|---|
| 学名 | Caprimulgus vexillarius | Setopagis maculosa |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Data Deficient |
| 体长 | — | — |
| 翼展 | 41.4 cm (16.3 in) | 27.8 cm (10.9 in) |
| 体重 | 189.70000000000002 g (6.69 oz) | 47.0 g (1.66 oz) |
| 食性 | Crepuscular forager targeting moths, termites, and large beetles; patrols forest edges and clearings at dusk. | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pennant-winged Nightjar
Melodic whistled churring; cleaner, more musical than most African nightjars; male's display call a repeated mellow whistle; calls at dusk across miombo woodland
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
Geographic Range & Migration
Pennant-winged Nightjar
Found across sub-Saharan Africa from Guinea east to Ethiopia and south to Angola. Resident in dry savanna, open woodland, and Sahel scrubland.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
保护状况
Pennant-winged Nightjar
Cayenne Nightjar
How to Tell Them Apart
Pennant-winged Nightjar
Large; dark brown and black upperparts with white wing-covert spots; large white primary patches visible in flight; breeding males grow extraordinary white pennant-shaped ninth primary extensions reaching 50 cm; females …
Cayenne Nightjar
Brown and buff mottled above with dark vermiculations; pale buff below with darker barring; white throat patch in male; outer tail spots white; data deficient; known from only a handful …
About These Birds
Pennant-winged Nightjar
旗状翎夜鹰，体长24–28厘米，分布于南非开阔林地，繁殖期雄鸟发育出长达60厘米的白色旗状羽，为长距离非洲内部迁徙鸟类。
Cayenne Nightjar
A small Caprimulgidae nightjar (~47 g) from coastal French Guiana and adjacent Suriname. Known from only a handful of specimens; biology essentially unknown. Mottled brown plumage presumed cryptic in leaf litter. Presumed nocturnal insectivore. Data Deficient due to extreme rarity of confirmed records in the wild.