Star-spotted Nightjar vs Archbold's Nightjar
Caprimulgus stellatus so với Eurostopodus archboldi
Side-by-Side Comparison
| Thuộc Tính | Star-spotted Nightjar | Archbold's Nightjar |
|---|---|---|
| Tên Khoa Học | Caprimulgus stellatus | Eurostopodus archboldi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 30,9 cm (12.2 in) | 41,0 cm (16.1 in) |
| Khối Lượng | 59,25 g (2.09 oz) | 77,0 g (2.72 oz) |
| Chế Độ Ăn | -- | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| Số Trứng | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Star-spotted Nightjar only
Archbold's Nightjar only
Song & Call Comparison
Star-spotted Nightjar
Churring trill; hollow 'chuck' notes interspersed with churring; calls from dry East African bush at night; similar to Donaldson Smith's but larger and louder
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
Star-spotted Nightjar
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Tình Trạng Bảo Tồn
Star-spotted Nightjar
Archbold's Nightjar
How to Tell Them Apart
Star-spotted Nightjar
Dark brown upperparts densely dotted with small buff-white stellate spots; white throat patch; underparts barred buff and dark brown; the star-like white spotting on wing coverts and back is the …
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
Star-spotted Nightjar
A small nightjar (21-23 cm) found in dry, rocky semi-desert and arid bushland of the Horn of Africa and southern Arabian Peninsula. Sandy-brown plumage with star-like white spots on wing coverts. Nocturnal insectivore. Poorly studied due to remote habitat.
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.