Collared Nightjar vs Cayenne Nightjar
Gactornis enarratus 비교 대상 Setopagis maculosa
Side-by-Side Comparison
| 속성 | Collared Nightjar | Cayenne Nightjar |
|---|---|---|
| 학명 | Gactornis enarratus | Setopagis maculosa |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Least Concern | Data Deficient |
| 체장 | — | — |
| 날개 폭 | 29.5 cm (11.6 in) | 27.8 cm (10.9 in) |
| 체중 | 52.833333333333336 g (1.86 oz) | 47.0 g (1.66 oz) |
| 식성 | Nocturnal aerial insectivore; catches moths and beetles in flight over Malagasy forest and forest edge. | 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
Collared Nightjar
Soft, churring trill; gentle repeated 'trrr-trrr' at moderate pitch; quiet for a nightjar; calls from dense Madagascar forest undergrowth at dusk
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
Collared Nightjar
Endemic to Madagascar; resident of moist eastern lowland and montane forest from sea level to 2,000 m.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
보전 상태
Collared Nightjar
Cayenne Nightjar
How to Tell Them Apart
Collared Nightjar
Brown and rufous with dark brown vermiculations; distinctive rufous-orange collar across hindneck diagnostic; pale buff throat; spotted with buff on wing coverts; tail barred brown; Madagascar endemic nightjar.
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
Collared Nightjar
A small, beautifully patterned Caprimulgidae nightjar (~53 g) endemic to Madagascar. A pale collar separates the dark crown from streaked brown upperparts. Inhabits humid eastern rainforest and dry western woodland. Nocturnal; hunts insects in forest understorey. Seldom encountered; Least Concern on Madagascar.
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.