Andaman Nightjar vs Rufous-bellied Nighthawk
Caprimulgus andamanicus so với Lurocalis rufiventris
Side-by-Side Comparison
| Thuộc Tính | Andaman Nightjar | Rufous-bellied Nighthawk |
|---|---|---|
| Tên Khoa Học | Caprimulgus andamanicus | Lurocalis rufiventris |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 36,4 cm (14.3 in) | 40,6 cm (16.0 in) |
| Khối Lượng | 66,06666666666666 g (2.33 oz) | 104,5 g (3.69 oz) |
| Chế Độ Ăn | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Catches large flying insects in nocturnal aerial pursuit over Andean forest and forest edge. |
| Số Trứng | 1-2 | 1 |
| 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
Rufous-bellied Nighthawk
Deep, hollow 'wok-wok' series; resonant frog-like calls from Andean forest canopy; lower in pitch than Short-tailed Nighthawk; carries across mountain valleys
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.
Rufous-bellied Nighthawk
Resident of Andean foothills and montane forest edge from Colombia and Venezuela south through Ecuador and Peru to Bolivia, at 500–2,000 m.
Tình Trạng Bảo Tồn
Andaman Nightjar
Rufous-bellied Nighthawk
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 …
Rufous-bellied Nighthawk
Dark sooty-brown above with buff and chestnut spotting; distinctive rufous-orange belly contrasting with dark breast; no white wing bar; short rounded tail; rufous tone on underparts unique among nighthawks.
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.
Rufous-bellied Nighthawk
A medium Caprimulgidae nighthawk (~105 g) of montane forest edges and humid foothill zones from Colombia to Bolivia. Rufous underparts contrast with dark upperparts; a white throat patch is visible. Hawk-like flight above the forest at dusk and dawn. Seldom recorded; biology little known. Least Concern.