Tawny-collared Nightjar vs Archbold's Nightjar
Antrostomus salvini so với Eurostopodus archboldi
Side-by-Side Comparison
| Thuộc Tính | Tawny-collared Nightjar | Archbold's Nightjar |
|---|---|---|
| Tên Khoa Học | Antrostomus salvini | Eurostopodus archboldi |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 33,8 cm (13.3 in) | 41,0 cm (16.1 in) |
| Khối Lượng | 56,0 g (1.98 oz) | 77,0 g (2.72 oz) |
| Chế Độ Ăn | Aerial insectivore; hawks moths and beetles at night over Central American forest and forest edge. | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| Số Trứng | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Tawny-collared Nightjar
Loud 'WHEEP' or 'weet' repeated at intervals; sharp, whistled call; carries through Mexican highland forest; higher-pitched than Chuck-will's-widow; distinctive sharp quality
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
Tawny-collared Nightjar
Resident of tropical dry forest and scrub in eastern Mexico (Veracruz, Oaxaca, Tabasco) and northern Central America.
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
Tawny-collared Nightjar
Archbold's Nightjar
How to Tell Them Apart
Tawny-collared Nightjar
Brown and buff mottled above; distinctive tawny-buff collar encircling hindneck diagnostic; white gorget in male; pale buff underparts with dark barring; white outer tail spots in male; Mexican dry forests.
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
Tawny-collared Nightjar
A medium-small Caprimulgidae nightjar (~56 g) of humid foothill and montane forest edges in northeastern Mexico, Guatemala, Belize, and Honduras. Named for its tawny hindneck collar. Brown-mottled plumage; males have white tail corners. Roosts on the ground; feeds nocturnally on insects. Least Concern.
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.