Archbold's Nightjar vs Band-tailed Nighthawk
Eurostopodus archboldi comparé à Nyctiprogne leucopyga
Side-by-Side Comparison
| Attribut | Archbold's Nightjar | Band-tailed Nighthawk |
|---|---|---|
| Nom scientifique | Eurostopodus archboldi | Nyctiprogne leucopyga |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Caprimulgidae | Caprimulgidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 41,0 cm (16.1 in) | 27,2 cm (10.7 in) |
| Poids | 77,0 g (2.72 oz) | 24,7 g (0.87 oz) |
| Régime alimentaire | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Hawks small to medium flying insects over South American rivers, lakes, and surrounding savanna at … |
| Taille de la couvée | 1 | -- |
| 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
Band-tailed Nighthawk
Sharp, high 'chip-chip' notes; thin buzzy trills; calls over rivers at dusk; small size produces high-pitched thin vocalizations; often calls in flight
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.
Band-tailed Nighthawk
Resident and nomadic along large rivers and in open savanna in tropical South America from Venezuela south to Bolivia, Brazil, and northern Argentina.
Statut de conservation
Archbold's Nightjar
Band-tailed Nighthawk
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.
Band-tailed Nighthawk
Small; dark brown above with buff speckles; pale buff below with dark brown barring; white tail band diagnostic at species level; white throat patch in male; no white wing bar; …
About These Birds
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.
Band-tailed Nighthawk
A tiny Caprimulgidae nighthawk (~25 g) of tropical river margins and sandbar beaches in the Amazon and Orinoco basins. Blackish brown with a white rump band; very small. Roosts on bare sand and low branches near water. Feeds on insects aerially at low elevations above rivers at dusk. Least Concern.