Common Nighthawk vs Archbold's Nightjar
Chordeiles minor compared with Eurostopodus archboldi
Side-by-Side Comparison
| Attribute | Common Nighthawk | Archbold's Nightjar |
|---|---|---|
| Scientific Name | Chordeiles minor | Eurostopodus archboldi |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Caprimulgidae | Caprimulgidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 38.6 cm (15.2 in) | 41.0 cm (16.1 in) |
| Weight | 71.75 g (2.53 oz) | 77.0 g (2.72 oz) |
| Diet | Aerial insectivore; catches flying beetles, ants, moths, and flies in fast aerial pursuit over open … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| Clutch Size | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Common Nighthawk
Loud, nasal 'peent' call repeated in flight; display dive produces loud booming 'whomp' with wings; churring trill on breeding grounds; colonial roost cacophony
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
Common Nighthawk
Breeds across North America from Alaska to the Gulf Coast; long-distance migrant wintering in South America south to Argentina.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Conservation Status
Common Nighthawk
Archbold's Nightjar
How to Tell Them Apart
Common Nighthawk
Brown and grey mottled above; white throat in male; white and dark barred underparts; distinctive white wing bar across primaries positioned more centrally than in Lesser Nighthawk; white tail band …
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
Common Nighthawk
A medium Caprimulgidae nighthawk (~72 g) widespread across North America, wintering in South America. Characterised by white wing patches conspicuous in erratic aerial flight. Breeds on flat gravel rooftops and open ground. Highly aerial; catches flying insects at dusk and night. Least Concern despite urban declines.
Archbold's Nightjar
A small Caprimulgidae nightjar (~77 g) known from subalpine grasslands and forest margins in the interior mountains of New Guinea. Named after naturalist Richard Archbold. Cryptic brown-patterned plumage. Nocturnal insectivore. Infrequently observed; biology largely undescribed. Least Concern in its montane range.