Buff-collared Nightjar vs Cayenne Nightjar
Antrostomus ridgwayi 비교 대상 Setopagis maculosa
Side-by-Side Comparison
| 속성 | Buff-collared Nightjar | Cayenne Nightjar |
|---|---|---|
| 학명 | Antrostomus ridgwayi | Setopagis maculosa |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Least Concern | Data Deficient |
| 체장 | — | — |
| 날개 폭 | 30.0 cm (11.8 in) | 27.8 cm (10.9 in) |
| 체중 | 49.5 g (1.75 oz) | 47.0 g (1.66 oz) |
| 식성 | Catches moths and flying insects at night over arid scrub and rocky canyons of Mexico … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| 산란 수 | 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
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
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.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
보전 상태
Buff-collared Nightjar
Cayenne 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 …
Cayenne Nightjar
Brown and buff mottled above with dark vermiculations; pale buff below with darker barring; white throat patch in male; outer tail spots white; data deficient; known from only a handful …
About These Birds
Buff-collared Nightjar
지프 나이트자는 멕시코 서부와 중앙 아메리카 일부에 서식하는 나이트자입니다. 건조한 관목 지대와 서반구 열대 낙엽 숲에 서식하며, 밤에 특징적인 '부 윔-윔' 소리를 냅니다.
Cayenne Nightjar
A small Caprimulgidae nightjar (~47 g) from coastal French Guiana and adjacent Suriname. Known from only a handful of specimens; biology essentially unknown. Mottled brown plumage presumed cryptic in leaf litter. Presumed nocturnal insectivore. Data Deficient due to extreme rarity of confirmed records in the wild.