Andaman Nightjar vs White-tailed Nightjar
Caprimulgus andamanicus เปรียบเทียบกับ Hydropsalis cayennensis
Side-by-Side Comparison
| คุณสมบัติ | Andaman Nightjar | White-tailed Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus andamanicus | Hydropsalis cayennensis |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 36.4 cm (14.3 in) | 27.3 cm (10.7 in) |
| น้ำหนัก | 66.06666666666666 g (2.33 oz) | 35.75 g (1.26 oz) |
| อาหาร | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. | Aerial insectivore; catches moths, beetles, and flying insects at night over South American open and … |
| จำนวนไข่ | 1-2 | 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
White-tailed Nightjar
Rapid, whirring trill; 'churrrr' repeated with nasal quality; calls from open savanna and grassland at dusk; alarm a sharp bark; males display low over ground
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.
White-tailed Nightjar
Resident of open savanna and forest edge from Costa Rica through Colombia and Venezuela to the Guianas and northern Brazil; also Caribbean islands.
สถานะการอนุรักษ์
Andaman Nightjar
White-tailed 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 …
White-tailed Nightjar
Male brown and grey mottled; white outer tail feathers diagnostic; white throat; small white wing spots; female has buff outer tail feathers and lacks white wing spots; scrubby savanna habitats.
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.
White-tailed Nightjar
A small Caprimulgidae nightjar (~36 g) of open grassland, coastal savanna, and dry scrub from Panama through northern South America to Trinidad. Males show conspicuous white outer tail feathers. Roosts on bare ground or low branches by day. Feeds on insects at dusk. Adaptable to lightly degraded habitat; Least Concern.