Archbold's Nightjar vs Choco Poorwill
Eurostopodus archboldi 比較対象 Nyctiphrynus rosenbergi
Side-by-Side Comparison
| 属性 | Archbold's Nightjar | Choco Poorwill |
|---|---|---|
| 学名 | Eurostopodus archboldi | Nyctiphrynus rosenbergi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 41.0 cm (16.1 in) | 24.8 cm (9.8 in) |
| 体重 | 77.0 g (2.72 oz) | 49.65 g (1.75 oz) |
| 食性 | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Nocturnal aerial insectivore; catches moths and small insects in flight over Pacific Chocó forest. |
| 一腹卵数 | 1 | 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
Choco Poorwill
Soft, purring 'poor-will' whistle; gentle repetitive phrases from humid Pacific forest; calls from low perch at night; higher and thinner than Common Poorwill
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.
Choco Poorwill
Resident of lowland Pacific rainforest and forest edge in northwestern Colombia and northwestern Ecuador (Chocó region).
保全状況
Archbold's Nightjar
Choco Poorwill
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.
Choco Poorwill
Brown and rufous mottled above with dark vermiculations; pale buff below with brown barring; white throat patch in male; small white spots on outer tail in male; no white wing …
About These Birds
Archbold's Nightjar
ニューギニアの亜高山帯に生息するヨタカで、探検家リチャード・アーチボルドにちなんで命名された。
Choco Poorwill
A small Caprimulgidae poorwill (~50 g) of humid lowland and foothill rainforest in the Choco region of Colombia and northwestern Ecuador. Mottled brown-and-buff plumage blends with forest floor. Secretive nocturnal insectivore; rarely seen. Calls with a repeated whistled note. Least Concern in its humid forest habitat.