Archbold's Nightjar vs Malay Eared-nightjar
Eurostopodus archboldi so với Lyncornis temminckii
Side-by-Side Comparison
| Thuộc Tính | Archbold's Nightjar | Malay Eared-nightjar |
|---|---|---|
| Tên Khoa Học | Eurostopodus archboldi | Lyncornis temminckii |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 41,0 cm (16.1 in) | 41,0 cm (16.1 in) |
| Khối Lượng | 77,0 g (2.72 oz) | 95,0 g (3.35 oz) |
| Chế Độ Ăn | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Nocturnal aerial insectivore; catches large moths and beetles in flight over SE Asian lowland forest. |
| Số Trứng | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Archbold's Nightjar only
Không
Malay Eared-nightjar only
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
Malay Eared-nightjar
Loud, repeated 'tock-tock-tock' or 'bonk-bonk'; hollow, wooden quality; carries well through lowland forest; alarm a sharp 'chek'; call accelerates toward end
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.
Malay Eared-nightjar
Resident of lowland forest, forest edge, and secondary growth in Brunei, Malaysia, Sumatra, and Borneo, up to 600 m.
Tình Trạng Bảo Tồn
Archbold's Nightjar
Malay Eared-nightjar
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.
Malay Eared-nightjar
Brown and buff mottled with black vermiculations; distinctive long narrow ear-tufts projecting from crown; buff-white throat patch; no white wing spots; tail broadly barred brown and buff. Sexes similar.
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.
Malay Eared-nightjar
A medium Caprimulgidae nightjar (~95 g) of forest edges, secondary growth, and plantation margins in Sundaland, including the Malay Peninsula, Borneo, Sumatra, and the Philippines. Distinguished by small, inconspicuous ear tufts. Nocturnal aerial insectivore. Rarely observed; calls heard at night. Least Concern.