Andaman Nightjar vs Roraiman Nightjar
Caprimulgus andamanicus เปรียบเทียบกับ Setopagis whitelyi
Side-by-Side Comparison
| คุณสมบัติ | Andaman Nightjar | Roraiman Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus andamanicus | Setopagis whitelyi |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 36.4 cm (14.3 in) | 31.1 cm (12.2 in) |
| น้ำหนัก | 66.06666666666666 g (2.33 oz) | 40.75 g (1.44 oz) |
| อาหาร | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Nocturnal aerial insectivore; hawks insects over Tepui highland forest and savanna of Venezuela and Guyana. |
| จำนวนไข่ | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Andaman Nightjar
Loud 'chuck-chuck-trrr'; hollow knocking prefix followed by trill; endemic to Andaman Islands; calls at night from forest edges and clearings; similar to Large-tailed
Roraiman Nightjar
Churring phrases at moderate pace; rasping trill from tepui scrub and forest edges; slightly deeper than Little Nightjar; calls at dusk from rocky highland terrain
Geographic Range & Migration
Andaman Nightjar
Endemic to the Philippines including Luzon and Mindanao. Resident in lowland and submontane forest and forest edge up to 1,800 m.
Roraiman Nightjar
Endemic to the Roraima highlands of Venezuela and adjacent northwestern Brazil (Gran Sabana and tepuis), above 1,000 m.
สถานะการอนุรักษ์
Andaman Nightjar
Roraiman Nightjar
How to Tell Them Apart
Andaman Nightjar
Warm rufous-brown upperparts with black-centred scapulars and pale buff streaks; broad white throat patch; males show white outer tail feathers; underparts buff barred brown; endemic island coloration slightly warmer than …
Roraiman Nightjar
Warm rufous-brown and dark brown mottled above; pale buff below with dark barring; white throat patch in male; white outer tail spots in male; buff throat in female; tepui highlands …
About These Birds
Andaman Nightjar
A medium-sized nightjar (24-26 cm) endemic to the Andaman Islands in the Bay of Bengal. Dark brown plumage with rufous collar spots. Nocturnal insectivore of lowland and mangrove forests. A sedentary species with a restricted island range.
Roraiman Nightjar
A small Caprimulgidae nightjar (~41 g) restricted to the tepui highlands of Venezuela, Guyana, and adjacent Brazil, typically above 1,000 m. Named for Mount Roraima. Cryptic brown-patterned plumage. Nocturnal aerial insectivore. Inhabits rocky scrub and forest edges at elevation. Least Concern in its remote tepui range.