Archbold's Nightjar vs Ocellated Poorwill
Eurostopodus archboldi 对比 Nyctiphrynus ocellatus
Side-by-Side Comparison
| 属性 | Archbold's Nightjar | Ocellated Poorwill |
|---|---|---|
| 学名 | Eurostopodus archboldi | Nyctiphrynus ocellatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 41.0 cm (16.1 in) | 25.1 cm (9.9 in) |
| 体重 | 77.0 g (2.72 oz) | 38.12 g (1.34 oz) |
| 食性 | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Nocturnal aerial insectivore; hawks moths and small insects over South American forest interior. |
| 产卵数 | 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
Ocellated Poorwill
Soft, repeated 'oo-whirr'; gentle purring whistle from Amazonian forest floor; calls at night from ground perch; quiet and easily overlooked despite continuous calling
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.
Ocellated Poorwill
Resident of lowland and foothill forest edge, secondary growth, and scrub from Nicaragua south through Panama and northwestern Colombia to Peru.
保护状况
Archbold's Nightjar
Ocellated 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.
Ocellated Poorwill
Brown mottled above with distinctive buff and rufous ocellated spots on wing coverts giving spotted appearance; pale buff below with dark barring; white throat in male; small white tail spots; …
About These Birds
Archbold's Nightjar
体重约77克的小型夜鹰，栖息于新几内亚内陆的亚高山草地。以理查德·阿奇博尔德命名。
Ocellated Poorwill
A small Caprimulgidae poorwill (~38 g) of lowland and foothill rainforest understorey from Nicaragua through the Amazon Basin. Named for pale ocellate spots on the wing coverts visible at rest. Roosts on or near the ground; feeds on insects nocturnally. Secretive and infrequently recorded. Least Concern.