Eastern Whip-poor-will vs Cayenne Nightjar
Antrostomus vociferus 비교 대상 Setopagis maculosa
Side-by-Side Comparison
| 속성 | Eastern Whip-poor-will | Cayenne Nightjar |
|---|---|---|
| 학명 | Antrostomus vociferus | Setopagis maculosa |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Near Threatened | Data Deficient |
| 체장 | — | — |
| 날개 폭 | 30.9 cm (12.2 in) | 27.8 cm (10.9 in) |
| 체중 | 53.099999999999994 g (1.87 oz) | 47.0 g (1.66 oz) |
| 식성 | Aerial insectivore; catches large moths and flying insects at night over North American forest and … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| 산란 수 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Eastern Whip-poor-will
Loud, clear 'whip-POOR-WILL' repeated hundreds of times; emphatic burry whistle; iconic nocturnal forest sound of eastern North America; male calls incessantly 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
Eastern Whip-poor-will
Breeds in open woodland and forest edge in eastern North America from southern Canada to the Gulf Coast; winters in Central America and Mexico.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
보전 상태
Eastern Whip-poor-will
Cayenne Nightjar
How to Tell Them Apart
Eastern Whip-poor-will
Grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white tips on outer tail feathers in male; female with buff gorget and buff …
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
Eastern Whip-poor-will
윔-윌-위스퍼는 북아메리카 동부에서 번식하고 미국 남동부 해안과 카리브해에서 월동하는 나이트자 새입니다. '윔-윌-위스퍼' 라는 울음소리로 유명하며, 낙엽수림과 삼림 가장자리에 서식합니다.
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.