Buff-collared Nightjar vs Andaman Nightjar
Antrostomus ridgwayi เปรียบเทียบกับ Caprimulgus andamanicus
Side-by-Side Comparison
| คุณสมบัติ | Buff-collared Nightjar | Andaman Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Antrostomus ridgwayi | Caprimulgus andamanicus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 30.0 cm (11.8 in) | 36.4 cm (14.3 in) |
| น้ำหนัก | 49.5 g (1.75 oz) | 66.06666666666666 g (2.33 oz) |
| อาหาร | Catches moths and flying insects at night over arid scrub and rocky canyons of Mexico … | Night-hunting insectivore targeting moths, flying beetles, and winged ants in erratic low-altitude aerial passes. |
| จำนวนไข่ | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Buff-collared Nightjar
Rapid, staccato 'cuk-cuk-cuk-WEEEER'; accelerating series ending in long slurred note; carries through arid Mexican canyons; distinctive rapid chucking intro
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
Geographic Range & Migration
Buff-collared Nightjar
Breeds in arid scrub and dry woodland in southwestern USA (Arizona, New Mexico) and western Mexico; winters south to Honduras.
Andaman Nightjar
Endemic to the Philippines including Luzon and Mindanao. Resident in lowland and submontane forest and forest edge up to 1,800 m.
สถานะการอนุรักษ์
Buff-collared Nightjar
Andaman Nightjar
How to Tell Them Apart
Buff-collared Nightjar
Brown and grey mottled with dark vermiculations; buff-orange collar across hindneck diagnostic; white gorget in male; pale buff underparts with dark barring; white outer tail spots in male; arid southwest …
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 …
About These Birds
Buff-collared Nightjar
A medium-small Caprimulgidae nightjar (~50 g) of arid scrub, rocky canyon slopes, and thorn forest from the southwestern United States to Nicaragua. A buff nuchal collar distinguishes it from similar species. Calls with a loud 'cuck-cuck-cuck-coo-chee' phrase. Feeds on moths and beetles. Least Concern.
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.