Cayenne Nightjar vs Greater Band-winged Nightjar
Setopagis maculosa so với Systellura longirostris
Side-by-Side Comparison
| Thuộc Tính | Cayenne Nightjar | Greater Band-winged Nightjar |
|---|---|---|
| Tên Khoa Học | Setopagis maculosa | Systellura longirostris |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Data Deficient | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 27,8 cm (10.9 in) | 31,0 cm (12.2 in) |
| Khối Lượng | 47,0 g (1.66 oz) | 45,666666666666664 g (1.61 oz) |
| Chế Độ Ăn | 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 … |
| Số Trứng | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Cayenne Nightjar only
Greater Band-winged Nightjar only
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.
Tình Trạng Bảo Tồn
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.