Silky-tailed Nightjar vs Papuan Nightjar
Antrostomus sericocaudatus 비교 대상 Eurostopodus papuensis
Side-by-Side Comparison
| 속성 | Silky-tailed Nightjar | Papuan Nightjar |
|---|---|---|
| 학명 | Antrostomus sericocaudatus | Eurostopodus papuensis |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 32.1 cm (12.6 in) | 37.9 cm (14.9 in) |
| 체중 | 77.5 g (2.73 oz) | 80.5 g (2.84 oz) |
| 식성 | Hawks moths and beetles in nocturnal aerial sallies over South American lowland and foothill forest. | Hawks large flying insects, especially moths, at night over Papuan forest and savanna. |
| 산란 수 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Silky-tailed Nightjar
Whistled, rolling 'pwee-pwee-pwee'; melodic phrase from Amazonian forest; calls persistently at dusk; slightly slurred delivery; alarm a sudden sharp note
Papuan Nightjar
Churring, repetitive nocturnal call; soft bubbling trill; melodic series of hollow notes; calls from low perch or ground in New Guinea lowland forest
Geographic Range & Migration
Silky-tailed Nightjar
Resident of lowland and foothill forest in southern Brazil (São Paulo, Minas Gerais, Santa Catarina) and adjacent Paraguay and Argentina.
Papuan Nightjar
Resident of savanna woodland, grass, and scrub in lowland New Guinea (Papua, Indonesia and Papua New Guinea).
보전 상태
Silky-tailed Nightjar
Papuan Nightjar
How to Tell Them Apart
Silky-tailed Nightjar
Brown and buff mottled above with dark vermiculations; white gorget in male; outer tail feathers with silky-white inner webs giving smooth appearance; pale buff below; female with buff gorget and …
Papuan Nightjar
Dark grey-brown finely vermiculated with buff and black; pale buff and rufous throat patch; pale supercilium; no white wing patches; tail barred brown and buff; cryptically patterned bark-mimicking plumage.
About These Birds
Silky-tailed Nightjar
비단 꼬리 나이트자는 남아메리카 중부와 동부의 아마존 및 세라도 지역에 서식합니다. 비단처럼 부드러운 꼬리 깃털이 특징이며, 삼림 가장자리와 개활 삼림에 서식합니다.
Papuan Nightjar
뉴기니아 저지 사바나, 초원, 숲 가장자리의 소형 쏙독새(~81g). 파푸아야행소쏙독새. 관심필요종.