Archbold's Nightjar vs Short-tailed Nighthawk
Eurostopodus archboldi comparé à Lurocalis semitorquatus
Side-by-Side Comparison
| Attribut | Archbold's Nightjar | Short-tailed Nighthawk |
|---|---|---|
| Nom scientifique | Eurostopodus archboldi | Lurocalis semitorquatus |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Caprimulgidae | Caprimulgidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 41,0 cm (16.1 in) | 37,1 cm (14.6 in) |
| Poids | 77,0 g (2.72 oz) | 80,7 g (2.85 oz) |
| Régime alimentaire | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Aerial insectivore; hawks large beetles and moths at night over South American forest canopy and … |
| Taille de la couvée | 1 | 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
Short-tailed Nighthawk
Loud, frog-like 'wok' or 'bok' repeated at dusk; hollow resonant quality; calls from high canopy in flight; rapid series when excited; distinctive and far-carrying
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.
Short-tailed Nighthawk
Resident of lowland forest edge and open woodland from Mexico through Central America and tropical South America to Bolivia and Brazil.
Statut de conservation
Archbold's Nightjar
Short-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.
Short-tailed Nighthawk
Dark sooty-brown with buff and rufous spotting; rufous-spotted throat forms partial collar; short rounded tail barred dark brown and buff; lacks white wing bar; darker and more uniformly colored than …
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.
Short-tailed Nighthawk
A medium Caprimulgidae nighthawk (~81 g) of forest canopy edges and second growth across much of tropical South America and Central America. Dark brown plumage with a white throat patch. Flies swiftly above the canopy at dusk, catching insects. Rounded wings and very short tail are distinctive. Least Concern.