Archbold's Nightjar vs Todd's Nightjar
Eurostopodus archboldi 对比 Setopagis heterura
Side-by-Side Comparison
| 属性 | Archbold's Nightjar | Todd's Nightjar |
|---|---|---|
| 学名 | Eurostopodus archboldi | Setopagis heterura |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 41.0 cm (16.1 in) | 27.8 cm (10.9 in) |
| 体重 | 77.0 g (2.72 oz) | 36.5 g (1.29 oz) |
| 食性 | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Aerial insectivore; catches moths and beetles in nocturnal flight over South American savanna and scrub. |
| 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
Todd's Nightjar
Rapid churring trill; nasal 'trrr-trrr' phrases repeated at dusk; calls from savanna and open woodland; poorly documented; higher-pitched than most Setopagis
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.
Todd's Nightjar
Resident of open woodland and savanna in Colombia, Venezuela, Trinidad, and the Guianas; also found in adjacent northern Brazil.
保护状况
Archbold's Nightjar
Todd's 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.
Todd's Nightjar
Brown and grey mottled with dark vermiculations; white throat patch in male; white spots on outer tail feathers in male; buff on throat and tail in female; no white wing …
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。
Todd's Nightjar
A small Caprimulgidae nightjar (~37 g) of open woodland and savanna in Trinidad and the Llanos of Venezuela and Colombia. Cryptically patterned brown-and-buff; white throat mark visible. Nocturnal; calls persistently at night. Feeds on flying insects. Similar to Spot-tailed but distinguished by call and range. Least Concern.