Cayenne Nightjar vs Greater Band-winged Nightjar
Setopagis maculosa 比較対象 Systellura longirostris
Side-by-Side Comparison
| 属性 | Cayenne Nightjar | Greater Band-winged Nightjar |
|---|---|---|
| 学名 | Setopagis maculosa | Systellura longirostris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Data Deficient | Least Concern |
| 体長 | — | — |
| 翼開長 | 27.8 cm (10.9 in) | 31.0 cm (12.2 in) |
| 体重 | 47.0 g (1.66 oz) | 45.666666666666664 g (1.61 oz) |
| 食性 | Catches flying insects in aerial pursuit at night over South American forest and scrub. | Aerial insectivore; catches moths and flying insects at night over South American open and scrubby … |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
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
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
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.
保全状況
Cayenne Nightjar
Greater Band-winged Nightjar
How to Tell Them Apart
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 …
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
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.
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.