Pennant-winged Nightjar vs Heinrich's Nightjar
Caprimulgus vexillarius เปรียบเทียบกับ Eurostopodus diabolicus
Side-by-Side Comparison
| คุณสมบัติ | Pennant-winged Nightjar | Heinrich's Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus vexillarius | Eurostopodus diabolicus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 41.4 cm (16.3 in) | 39.9 cm (15.7 in) |
| น้ำหนัก | 189.70000000000002 g (6.69 oz) | 104.0 g (3.67 oz) |
| อาหาร | Crepuscular forager targeting moths, termites, and large beetles; patrols forest edges and clearings at dusk. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| จำนวนไข่ | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
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Pennant-winged Nightjar only
Heinrich's Nightjar only
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
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
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.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
สถานะการอนุรักษ์
Pennant-winged Nightjar
Heinrich's 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 …
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
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.
Heinrich's Nightjar
A medium Caprimulgidae nightjar (~104 g) endemic to the forest and forest-edge habitats of Sulawesi, Indonesia. Cryptically patterned brown-and-buff. Nocturnal insectivore; catches moths and beetles in aerial sallies. Little studied and rarely encountered in the field. Least Concern within its Sulawesi range.