Freckled Nightjar vs Archbold's Nightjar
Caprimulgus tristigma 비교 대상 Eurostopodus archboldi
Side-by-Side Comparison
| 속성 | Freckled Nightjar | Archbold's Nightjar |
|---|---|---|
| 학명 | Caprimulgus tristigma | Eurostopodus archboldi |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Caprimulgidae | Caprimulgidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 34.4 cm (13.5 in) | 41.0 cm (16.1 in) |
| 체중 | 79.88333333333334 g (2.82 oz) | 77.0 g (2.72 oz) |
| 식성 | Nocturnal aerial insectivore, hawking moths, beetles, and other flying insects in sustained sallying flight over … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| 산란 수 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Freckled Nightjar
Loud, dog-like 'bow-wow' or 'woof-woof'; unusual barking call for a nightjar; carries across rocky African outcrops; alarm a sharp 'chek'; distinctive among all nightjars
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Geographic Range & Migration
Freckled Nightjar
Found in Borneo and Sumatra in lowland rainforest and peat swamp forest. Rare and seldom recorded; possibly resident year-round.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
보전 상태
Freckled Nightjar
Archbold's Nightjar
How to Tell Them Apart
Freckled Nightjar
Heavily freckled dark grey and black upperparts resembling granite surfaces; whitish throat patch; underparts densely barred dark and pale; uniquely dark stone-coloured cryptic plumage adapted to rocky outcrops in Africa.
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.
About These Birds
Freckled Nightjar
사하라 이남 아프리카 바위 노출부와 돌이 많은 언덕에 사는 중형 쏙독새(25-28 cm). 이끼 덮인 암석처럼 보이는 독특하게 점박이 회갈색 깃털을 가진다. 야행성 곤충 포식자다. 거주성이며, 쏙독새 중 가장 뛰어난 보호색을 가진 종 중 하나다.
Archbold's Nightjar
뉴기니아 아고산 초원과 숲에 서식하는 소형 쏙독새(~77g). 아치볼드야행소쏙독새라고도 불린다. 관심필요종.