Salvadori's Nightjar vs Archbold's Nightjar
Caprimulgus pulchellus в сравнении с Eurostopodus archboldi
Side-by-Side Comparison
| Характеристика | Salvadori's Nightjar | Archbold's Nightjar |
|---|---|---|
| Научное название | Caprimulgus pulchellus | Eurostopodus archboldi |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Caprimulgidae | Caprimulgidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 30,8 cm (12.1 in) | 41,0 cm (16.1 in) |
| Масса | 57,5 g (2.03 oz) | 77,0 g (2.72 oz) |
| Питание | Strictly nocturnal aerial forager targeting moths and large beetles; hunts by sight in low, erratic … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| Размер кладки | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Salvadori's Nightjar
Churring trill; repetitive 'chrrr' from Sumatran highland forest; calls at night from mossy forest understory; moderate pitch; similar to but separable from Bornean species
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
Salvadori's Nightjar
Known from a single specimen from the eastern DRC. One of Africa's rarest birds; range and habitat entirely unknown. Possibly highland forest.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Охранный статус
Salvadori's Nightjar
Archbold's Nightjar
How to Tell Them Apart
Salvadori's Nightjar
Attractively patterned dark brown and buff upperparts; warm buff supercilium and throat patch; rufous-buff spotting on wing coverts; underparts barred buff; montane Sundaland endemic with relatively rich coloration.
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
Salvadori's Nightjar
A medium-sized nightjar (24-26 cm) endemic to montane forests of Sumatra and Java, Indonesia. Dark brown plumage with rufous collar patches. Nocturnal insectivore of high-altitude forests above 1,000 m. Classified as Vulnerable due to habitat loss in montane regions.
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.