Pennant-winged Nightjar vs Cayenne Nightjar
Caprimulgus vexillarius в сравнении с Setopagis maculosa
Side-by-Side Comparison
| Характеристика | Pennant-winged Nightjar | Cayenne Nightjar |
|---|---|---|
| Научное название | Caprimulgus vexillarius | Setopagis maculosa |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Caprimulgidae | Caprimulgidae |
| Охранный статус | Least Concern | Data Deficient |
| Длина | — | — |
| Размах крыльев | 41,4 cm (16.3 in) | 27,8 cm (10.9 in) |
| Масса | 189,70000000000002 g (6.69 oz) | 47,0 g (1.66 oz) |
| Питание | 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. |
| Размер кладки | 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.
Охранный статус
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
A spectacular nightjar (24-28 cm) of southern African open woodlands. Breeding males develop extraordinary elongated innermost primary feathers trailing as white pennants up to 60 cm long during courtship display flights. Nocturnal insectivore; a long-distance intra-African migrant.
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.