Archbold's Nightjar vs Ladder-tailed Nightjar
Eurostopodus archboldi 비교 대상 Hydropsalis climacocerca
Side-by-Side Comparison
| 속성 | Archbold's Nightjar | Ladder-tailed Nightjar |
|---|---|---|
| 학명 | Eurostopodus archboldi | Hydropsalis climacocerca |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 41.0 cm (16.1 in) | 29.9 cm (11.8 in) |
| 체중 | 77.0 g (2.72 oz) | 48.0 g (1.69 oz) |
| 식성 | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Nocturnal aerial insectivore; hawks insects over Amazonian river margins and forest clearings. |
| 산란 수 | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Ladder-tailed Nightjar
Resonant churring trill over Amazonian rivers; 'churr-churr' with hollow quality; calls from riverside sandbars and beaches at dusk; distinctive riverside habitat singer
Geographic Range & Migration
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Ladder-tailed Nightjar
Resident of sandy riverbanks, open woodland, and savanna in the Amazon basin from Colombia and Peru south to Bolivia and central Brazil.
보전 상태
Archbold's Nightjar
Ladder-tailed Nightjar
How to Tell Them Apart
Archbold's Nightjar
Brown and dark grey with rufous-buff vermiculations; whitish throat patch; pale buff supercilium contrasts with darker crown; no white wing or tail patches; tail barred; New Guinea highlands; few records.
Ladder-tailed Nightjar
Male brown and buff mottled above; white throat; graduated tail with white ladder pattern on inner webs of outer rectrices diagnostic; white wing patches. Female has buff throat; tail barred …
About These Birds
Archbold's Nightjar
뉴기니아 아고산 초원과 숲에 서식하는 소형 쏙독새(~77g). 아치볼드야행소쏙독새라고도 불린다. 관심필요종.
Ladder-tailed Nightjar
사다리꼬리나이트자는 남아메리카 아마존 강 유역에 서식하는 쏙독새 종류이다. 수컷은 사다리 모양의 계단식 꼬리가 특징적이며 갈색과 황갈색 계열의 얼룩무늬 깃털을 가진다. 강가의 모래사장이나 자갈밭에서 번식한다.